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Finding the Fourth Proportional to 94,007.78, 129,722.52 and 53,713.52

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Solution

The fourth proportional to 94,007.78, 129,722.52 and 53,713.52 is: 74,119.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,007.78 : 129,722.52 = 53,713.52 : x
  2. Step 2: Convert to fraction form
    94,007.78/129,722.52 = 53,713.52/x
  3. Step 3: Cross multiply
    94,007.78x = 129,722.52 × 53,713.52
  4. Step 4: Simplify right side
    94,007.78x = 6,967,853,172.47
  5. Step 5: Solve for x
    x = 6,967,853,172.47/94,007.78
  6. Step 6: Final answer
    x = 74,119.96

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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.