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Finding the Fourth Proportional to 61,545.83, 92,318.67 and 19,429.16

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Solution

The fourth proportional to 61,545.83, 92,318.67 and 19,429.16 is: 29,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,545.83 : 92,318.67 = 19,429.16 : x
  2. Step 2: Convert to fraction form
    61,545.83/92,318.67 = 19,429.16/x
  3. Step 3: Cross multiply
    61,545.83x = 92,318.67 × 19,429.16
  4. Step 4: Simplify right side
    61,545.83x = 1,793,673,748.82
  5. Step 5: Solve for x
    x = 1,793,673,748.82/61,545.83
  6. Step 6: Final answer
    x = 29,143.71

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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.