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Finding the Fourth Proportional to 71,574.96, 98,718.71 and 48,622.49

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Solution

The fourth proportional to 71,574.96, 98,718.71 and 48,622.49 is: 67,061.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,574.96 : 98,718.71 = 48,622.49 : x
  2. Step 2: Convert to fraction form
    71,574.96/98,718.71 = 48,622.49/x
  3. Step 3: Cross multiply
    71,574.96x = 98,718.71 × 48,622.49
  4. Step 4: Simplify right side
    71,574.96x = 4,799,948,753.08
  5. Step 5: Solve for x
    x = 4,799,948,753.08/71,574.96
  6. Step 6: Final answer
    x = 67,061.84

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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.