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Finding the Fourth Proportional to 60,472.64, 90,697.12 and 57,472.13

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Solution

The fourth proportional to 60,472.64, 90,697.12 and 57,472.13 is: 86,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,472.64 : 90,697.12 = 57,472.13 : x
  2. Step 2: Convert to fraction form
    60,472.64/90,697.12 = 57,472.13/x
  3. Step 3: Cross multiply
    60,472.64x = 90,697.12 × 57,472.13
  4. Step 4: Simplify right side
    60,472.64x = 5,212,556,754.33
  5. Step 5: Solve for x
    x = 5,212,556,754.33/60,472.64
  6. Step 6: Final answer
    x = 86,196.94

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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.