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Finding the Fourth Proportional to 110,956.68, 153,120.76 and 60,655.68

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Solution

The fourth proportional to 110,956.68, 153,120.76 and 60,655.68 is: 83,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,956.68 : 153,120.76 = 60,655.68 : x
  2. Step 2: Convert to fraction form
    110,956.68/153,120.76 = 60,655.68/x
  3. Step 3: Cross multiply
    110,956.68x = 153,120.76 × 60,655.68
  4. Step 4: Simplify right side
    110,956.68x = 9,287,643,819.92
  5. Step 5: Solve for x
    x = 9,287,643,819.92/110,956.68
  6. Step 6: Final answer
    x = 83,705.13

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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.