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Finding the Fourth Proportional to 60,371.66, 90,472.98 and 51,440.42

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Solution

The fourth proportional to 60,371.66, 90,472.98 and 51,440.42 is: 77,088.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,371.66 : 90,472.98 = 51,440.42 : x
  2. Step 2: Convert to fraction form
    60,371.66/90,472.98 = 51,440.42/x
  3. Step 3: Cross multiply
    60,371.66x = 90,472.98 × 51,440.42
  4. Step 4: Simplify right side
    60,371.66x = 4,653,968,089.85
  5. Step 5: Solve for x
    x = 4,653,968,089.85/60,371.66
  6. Step 6: Final answer
    x = 77,088.62

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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.