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Finding the Fourth Proportional to 115,497.40, 173,246.10 and 84,393.40

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Solution

The fourth proportional to 115,497.40, 173,246.10 and 84,393.40 is: 126,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,497.40 : 173,246.10 = 84,393.40 : x
  2. Step 2: Convert to fraction form
    115,497.40/173,246.10 = 84,393.40/x
  3. Step 3: Cross multiply
    115,497.40x = 173,246.10 × 84,393.40
  4. Step 4: Simplify right side
    115,497.40x = 14,620,827,415.74
  5. Step 5: Solve for x
    x = 14,620,827,415.74/115,497.40
  6. Step 6: Final answer
    x = 126,590.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.