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Finding the Fourth Proportional to 74,411.52, 111,522.28 and 34,881.56

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Solution

The fourth proportional to 74,411.52, 111,522.28 and 34,881.56 is: 52,277.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,411.52 : 111,522.28 = 34,881.56 : x
  2. Step 2: Convert to fraction form
    74,411.52/111,522.28 = 34,881.56/x
  3. Step 3: Cross multiply
    74,411.52x = 111,522.28 × 34,881.56
  4. Step 4: Simplify right side
    74,411.52x = 3,890,071,101.16
  5. Step 5: Solve for x
    x = 3,890,071,101.16/74,411.52
  6. Step 6: Final answer
    x = 52,277.81

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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.