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Finding the Fourth Proportional to 115,405.40, 173,108.10 and 95,965.40

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Solution

The fourth proportional to 115,405.40, 173,108.10 and 95,965.40 is: 143,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,405.40 : 173,108.10 = 95,965.40 : x
  2. Step 2: Convert to fraction form
    115,405.40/173,108.10 = 95,965.40/x
  3. Step 3: Cross multiply
    115,405.40x = 173,108.10 × 95,965.40
  4. Step 4: Simplify right side
    115,405.40x = 16,612,388,059.74
  5. Step 5: Solve for x
    x = 16,612,388,059.74/115,405.40
  6. Step 6: Final answer
    x = 143,948.10

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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.