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Finding the Fourth Proportional to 73,314.47, 101,173.92 and 39,780.47

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Solution

The fourth proportional to 73,314.47, 101,173.92 and 39,780.47 is: 54,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,314.47 : 101,173.92 = 39,780.47 : x
  2. Step 2: Convert to fraction form
    73,314.47/101,173.92 = 39,780.47/x
  3. Step 3: Cross multiply
    73,314.47x = 101,173.92 × 39,780.47
  4. Step 4: Simplify right side
    73,314.47x = 4,024,746,342.28
  5. Step 5: Solve for x
    x = 4,024,746,342.28/73,314.47
  6. Step 6: Final answer
    x = 54,897.02

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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.