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Finding the Fourth Proportional to 83,204.70, 124,621.29 and 64,356.54

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Solution

The fourth proportional to 83,204.70, 124,621.29 and 64,356.54 is: 96,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,204.70 : 124,621.29 = 64,356.54 : x
  2. Step 2: Convert to fraction form
    83,204.70/124,621.29 = 64,356.54/x
  3. Step 3: Cross multiply
    83,204.70x = 124,621.29 × 64,356.54
  4. Step 4: Simplify right side
    83,204.70x = 8,020,195,034.74
  5. Step 5: Solve for x
    x = 8,020,195,034.74/83,204.70
  6. Step 6: Final answer
    x = 96,391.13

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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.