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Finding the Fourth Proportional to 157,771.68, 217,724.40 and 94,112.16

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Solution

The fourth proportional to 157,771.68, 217,724.40 and 94,112.16 is: 129,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,771.68 : 217,724.40 = 94,112.16 : x
  2. Step 2: Convert to fraction form
    157,771.68/217,724.40 = 94,112.16/x
  3. Step 3: Cross multiply
    157,771.68x = 217,724.40 × 94,112.16
  4. Step 4: Simplify right side
    157,771.68x = 20,490,513,568.70
  5. Step 5: Solve for x
    x = 20,490,513,568.70/157,771.68
  6. Step 6: Final answer
    x = 129,874.47

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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.