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Finding the Fourth Proportional to 94,457.16, 130,129.17 and 65,727.42

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Solution

The fourth proportional to 94,457.16, 130,129.17 and 65,727.42 is: 90,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,457.16 : 130,129.17 = 65,727.42 : x
  2. Step 2: Convert to fraction form
    94,457.16/130,129.17 = 65,727.42/x
  3. Step 3: Cross multiply
    94,457.16x = 130,129.17 × 65,727.42
  4. Step 4: Simplify right side
    94,457.16x = 8,553,053,876.38
  5. Step 5: Solve for x
    x = 8,553,053,876.38/94,457.16
  6. Step 6: Final answer
    x = 90,549.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.