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Finding the Fourth Proportional to 121,753.20, 182,543.40 and 46,844.40

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Solution

The fourth proportional to 121,753.20, 182,543.40 and 46,844.40 is: 70,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,753.20 : 182,543.40 = 46,844.40 : x
  2. Step 2: Convert to fraction form
    121,753.20/182,543.40 = 46,844.40/x
  3. Step 3: Cross multiply
    121,753.20x = 182,543.40 × 46,844.40
  4. Step 4: Simplify right side
    121,753.20x = 8,551,136,046.96
  5. Step 5: Solve for x
    x = 8,551,136,046.96/121,753.20
  6. Step 6: Final answer
    x = 70,233.36

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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.