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Finding the Fourth Proportional to 71,159.54, 98,200.46 and 38,894.80

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Solution

The fourth proportional to 71,159.54, 98,200.46 and 38,894.80 is: 53,674.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,159.54 : 98,200.46 = 38,894.80 : x
  2. Step 2: Convert to fraction form
    71,159.54/98,200.46 = 38,894.80/x
  3. Step 3: Cross multiply
    71,159.54x = 98,200.46 × 38,894.80
  4. Step 4: Simplify right side
    71,159.54x = 3,819,487,251.61
  5. Step 5: Solve for x
    x = 3,819,487,251.61/71,159.54
  6. Step 6: Final answer
    x = 53,674.99

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1.5x scale

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.