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Finding the Fourth Proportional to 99,086.79, 148,654.49 and 46,434.90

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Solution

The fourth proportional to 99,086.79, 148,654.49 and 46,434.90 is: 69,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,086.79 : 148,654.49 = 46,434.90 : x
  2. Step 2: Convert to fraction form
    99,086.79/148,654.49 = 46,434.90/x
  3. Step 3: Cross multiply
    99,086.79x = 148,654.49 × 46,434.90
  4. Step 4: Simplify right side
    99,086.79x = 6,902,756,145.53
  5. Step 5: Solve for x
    x = 6,902,756,145.53/99,086.79
  6. Step 6: Final answer
    x = 69,663.74

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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.