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Finding the Fourth Proportional to 107,543.52, 161,315.28 and 48,347.28

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Solution

The fourth proportional to 107,543.52, 161,315.28 and 48,347.28 is: 72,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,543.52 : 161,315.28 = 48,347.28 : x
  2. Step 2: Convert to fraction form
    107,543.52/161,315.28 = 48,347.28/x
  3. Step 3: Cross multiply
    107,543.52x = 161,315.28 × 48,347.28
  4. Step 4: Simplify right side
    107,543.52x = 7,799,155,010.44
  5. Step 5: Solve for x
    x = 7,799,155,010.44/107,543.52
  6. Step 6: Final answer
    x = 72,520.92

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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.