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Finding the Fourth Proportional to 114,562.78, 171,788.64 and 39,687.19

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Solution

The fourth proportional to 114,562.78, 171,788.64 and 39,687.19 is: 59,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,562.78 : 171,788.64 = 39,687.19 : x
  2. Step 2: Convert to fraction form
    114,562.78/171,788.64 = 39,687.19/x
  3. Step 3: Cross multiply
    114,562.78x = 171,788.64 × 39,687.19
  4. Step 4: Simplify right side
    114,562.78x = 6,817,808,395.52
  5. Step 5: Solve for x
    x = 6,817,808,395.52/114,562.78
  6. Step 6: Final answer
    x = 59,511.55

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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.