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Finding the Fourth Proportional to 94,018.78, 129,737.70 and 53,724.52

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Solution

The fourth proportional to 94,018.78, 129,737.70 and 53,724.52 is: 74,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,018.78 : 129,737.70 = 53,724.52 : x
  2. Step 2: Convert to fraction form
    94,018.78/129,737.70 = 53,724.52/x
  3. Step 3: Cross multiply
    94,018.78x = 129,737.70 × 53,724.52
  4. Step 4: Simplify right side
    94,018.78x = 6,970,095,658.40
  5. Step 5: Solve for x
    x = 6,970,095,658.40/94,018.78
  6. Step 6: Final answer
    x = 74,135.14

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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.