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Finding the Fourth Proportional to 125,285.53, 187,955.94 and 36,545.98

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Solution

The fourth proportional to 125,285.53, 187,955.94 and 36,545.98 is: 54,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,285.53 : 187,955.94 = 36,545.98 : x
  2. Step 2: Convert to fraction form
    125,285.53/187,955.94 = 36,545.98/x
  3. Step 3: Cross multiply
    125,285.53x = 187,955.94 × 36,545.98
  4. Step 4: Simplify right side
    125,285.53x = 6,869,034,024.12
  5. Step 5: Solve for x
    x = 6,869,034,024.12/125,285.53
  6. Step 6: Final answer
    x = 54,827.03

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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.