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Finding the Fourth Proportional to 73,142.76, 109,714.13 and 25,746.69

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Solution

The fourth proportional to 73,142.76, 109,714.13 and 25,746.69 is: 38,620.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,142.76 : 109,714.13 = 25,746.69 : x
  2. Step 2: Convert to fraction form
    73,142.76/109,714.13 = 25,746.69/x
  3. Step 3: Cross multiply
    73,142.76x = 109,714.13 × 25,746.69
  4. Step 4: Simplify right side
    73,142.76x = 2,824,775,693.73
  5. Step 5: Solve for x
    x = 2,824,775,693.73/73,142.76
  6. Step 6: Final answer
    x = 38,620.03

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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.