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Finding the Fourth Proportional to 58,869.34, 81,269.78 and 45,410.38

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Solution

The fourth proportional to 58,869.34, 81,269.78 and 45,410.38 is: 62,689.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,869.34 : 81,269.78 = 45,410.38 : x
  2. Step 2: Convert to fraction form
    58,869.34/81,269.78 = 45,410.38/x
  3. Step 3: Cross multiply
    58,869.34x = 81,269.78 × 45,410.38
  4. Step 4: Simplify right side
    58,869.34x = 3,690,491,592.32
  5. Step 5: Solve for x
    x = 3,690,491,592.32/58,869.34
  6. Step 6: Final answer
    x = 62,689.54

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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.