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Finding the Fourth Proportional to 144,062.64, 198,798.35 and 80,404.53

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Solution

The fourth proportional to 144,062.64, 198,798.35 and 80,404.53 is: 110,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,062.64 : 198,798.35 = 80,404.53 : x
  2. Step 2: Convert to fraction form
    144,062.64/198,798.35 = 80,404.53/x
  3. Step 3: Cross multiply
    144,062.64x = 198,798.35 × 80,404.53
  4. Step 4: Simplify right side
    144,062.64x = 15,984,287,494.50
  5. Step 5: Solve for x
    x = 15,984,287,494.50/144,062.64
  6. Step 6: Final answer
    x = 110,953.73

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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.