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Finding the Fourth Proportional to 110,919.68, 153,068.82 and 60,618.68

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Solution

The fourth proportional to 110,919.68, 153,068.82 and 60,618.68 is: 83,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,919.68 : 153,068.82 = 60,618.68 : x
  2. Step 2: Convert to fraction form
    110,919.68/153,068.82 = 60,618.68/x
  3. Step 3: Cross multiply
    110,919.68x = 153,068.82 × 60,618.68
  4. Step 4: Simplify right side
    110,919.68x = 9,278,829,817.56
  5. Step 5: Solve for x
    x = 9,278,829,817.56/110,919.68
  6. Step 6: Final answer
    x = 83,653.59

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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.