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Finding the Fourth Proportional to 119,654.95, 165,123.47 and 65,939.95

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Solution

The fourth proportional to 119,654.95, 165,123.47 and 65,939.95 is: 90,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,654.95 : 165,123.47 = 65,939.95 : x
  2. Step 2: Convert to fraction form
    119,654.95/165,123.47 = 65,939.95/x
  3. Step 3: Cross multiply
    119,654.95x = 165,123.47 × 65,939.95
  4. Step 4: Simplify right side
    119,654.95x = 10,888,233,355.63
  5. Step 5: Solve for x
    x = 10,888,233,355.63/119,654.95
  6. Step 6: Final answer
    x = 90,996.93

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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.