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Finding the Fourth Proportional to 67,730.60, 101,450.10 and 56,066.60

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Solution

The fourth proportional to 67,730.60, 101,450.10 and 56,066.60 is: 83,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,730.60 : 101,450.10 = 56,066.60 : x
  2. Step 2: Convert to fraction form
    67,730.60/101,450.10 = 56,066.60/x
  3. Step 3: Cross multiply
    67,730.60x = 101,450.10 × 56,066.60
  4. Step 4: Simplify right side
    67,730.60x = 5,687,962,176.66
  5. Step 5: Solve for x
    x = 5,687,962,176.66/67,730.60
  6. Step 6: Final answer
    x = 83,979.21

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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.