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Finding the Fourth Proportional to 113,737.50, 156,957.75 and 63,436.50

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Solution

The fourth proportional to 113,737.50, 156,957.75 and 63,436.50 is: 87,542.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,737.50 : 156,957.75 = 63,436.50 : x
  2. Step 2: Convert to fraction form
    113,737.50/156,957.75 = 63,436.50/x
  3. Step 3: Cross multiply
    113,737.50x = 156,957.75 × 63,436.50
  4. Step 4: Simplify right side
    113,737.50x = 9,956,850,307.88
  5. Step 5: Solve for x
    x = 9,956,850,307.88/113,737.50
  6. Step 6: Final answer
    x = 87,542.37

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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.