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Finding the Fourth Proportional to 83,446.67, 115,156.49 and 45,720.92

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Solution

The fourth proportional to 83,446.67, 115,156.49 and 45,720.92 is: 63,094.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,446.67 : 115,156.49 = 45,720.92 : x
  2. Step 2: Convert to fraction form
    83,446.67/115,156.49 = 45,720.92/x
  3. Step 3: Cross multiply
    83,446.67x = 115,156.49 × 45,720.92
  4. Step 4: Simplify right side
    83,446.67x = 5,265,060,726.06
  5. Step 5: Solve for x
    x = 5,265,060,726.06/83,446.67
  6. Step 6: Final answer
    x = 63,094.92

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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.