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Finding the Fourth Proportional to 71,275.46, 98,360.40 and 38,569.88

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Solution

The fourth proportional to 71,275.46, 98,360.40 and 38,569.88 is: 53,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,275.46 : 98,360.40 = 38,569.88 : x
  2. Step 2: Convert to fraction form
    71,275.46/98,360.40 = 38,569.88/x
  3. Step 3: Cross multiply
    71,275.46x = 98,360.40 × 38,569.88
  4. Step 4: Simplify right side
    71,275.46x = 3,793,748,701.80
  5. Step 5: Solve for x
    x = 3,793,748,701.80/71,275.46
  6. Step 6: Final answer
    x = 53,226.57

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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.