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Finding the Fourth Proportional to 110,112.92, 151,966.44 and 61,714.61

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Solution

The fourth proportional to 110,112.92, 151,966.44 and 61,714.61 is: 85,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,112.92 : 151,966.44 = 61,714.61 : x
  2. Step 2: Convert to fraction form
    110,112.92/151,966.44 = 61,714.61/x
  3. Step 3: Cross multiply
    110,112.92x = 151,966.44 × 61,714.61
  4. Step 4: Simplify right side
    110,112.92x = 9,378,549,577.69
  5. Step 5: Solve for x
    x = 9,378,549,577.69/110,112.92
  6. Step 6: Final answer
    x = 85,172.11

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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.