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Finding the Fourth Proportional to 83,260.80, 114,899.65 and 45,020.08

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Solution

The fourth proportional to 83,260.80, 114,899.65 and 45,020.08 is: 62,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,260.80 : 114,899.65 = 45,020.08 : x
  2. Step 2: Convert to fraction form
    83,260.80/114,899.65 = 45,020.08/x
  3. Step 3: Cross multiply
    83,260.80x = 114,899.65 × 45,020.08
  4. Step 4: Simplify right side
    83,260.80x = 5,172,791,035.17
  5. Step 5: Solve for x
    x = 5,172,791,035.17/83,260.80
  6. Step 6: Final answer
    x = 62,127.57

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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.