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Finding the Fourth Proportional to 160,972.80, 241,459.20 and 42,656.10

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Solution

The fourth proportional to 160,972.80, 241,459.20 and 42,656.10 is: 63,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,972.80 : 241,459.20 = 42,656.10 : x
  2. Step 2: Convert to fraction form
    160,972.80/241,459.20 = 42,656.10/x
  3. Step 3: Cross multiply
    160,972.80x = 241,459.20 × 42,656.10
  4. Step 4: Simplify right side
    160,972.80x = 10,299,707,781.12
  5. Step 5: Solve for x
    x = 10,299,707,781.12/160,972.80
  6. Step 6: Final answer
    x = 63,984.15

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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.