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Finding the Fourth Proportional to 83,011.40, 124,402.89 and 35,569.70

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Solution

The fourth proportional to 83,011.40, 124,402.89 and 35,569.70 is: 53,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,011.40 : 124,402.89 = 35,569.70 : x
  2. Step 2: Convert to fraction form
    83,011.40/124,402.89 = 35,569.70/x
  3. Step 3: Cross multiply
    83,011.40x = 124,402.89 × 35,569.70
  4. Step 4: Simplify right side
    83,011.40x = 4,424,973,254.24
  5. Step 5: Solve for x
    x = 4,424,973,254.24/83,011.40
  6. Step 6: Final answer
    x = 53,305.61

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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.