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Finding the Fourth Proportional to 125,001.84, 187,632.36 and 83,737.20

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Solution

The fourth proportional to 125,001.84, 187,632.36 and 83,737.20 is: 125,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,001.84 : 187,632.36 = 83,737.20 : x
  2. Step 2: Convert to fraction form
    125,001.84/187,632.36 = 83,737.20/x
  3. Step 3: Cross multiply
    125,001.84x = 187,632.36 × 83,737.20
  4. Step 4: Simplify right side
    125,001.84x = 15,711,808,455.79
  5. Step 5: Solve for x
    x = 15,711,808,455.79/125,001.84
  6. Step 6: Final answer
    x = 125,692.62

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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.