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Finding the Fourth Proportional to 115,463.20, 173,194.80 and 76,064.80

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Solution

The fourth proportional to 115,463.20, 173,194.80 and 76,064.80 is: 114,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,463.20 : 173,194.80 = 76,064.80 : x
  2. Step 2: Convert to fraction form
    115,463.20/173,194.80 = 76,064.80/x
  3. Step 3: Cross multiply
    115,463.20x = 173,194.80 × 76,064.80
  4. Step 4: Simplify right side
    115,463.20x = 13,174,027,823.04
  5. Step 5: Solve for x
    x = 13,174,027,823.04/115,463.20
  6. Step 6: Final answer
    x = 114,097.20

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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.