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Finding the Fourth Proportional to 67,607.30, 101,216.55 and 65,663.30

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Solution

The fourth proportional to 67,607.30, 101,216.55 and 65,663.30 is: 98,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,607.30 : 101,216.55 = 65,663.30 : x
  2. Step 2: Convert to fraction form
    67,607.30/101,216.55 = 65,663.30/x
  3. Step 3: Cross multiply
    67,607.30x = 101,216.55 × 65,663.30
  4. Step 4: Simplify right side
    67,607.30x = 6,646,212,687.62
  5. Step 5: Solve for x
    x = 6,646,212,687.62/67,607.30
  6. Step 6: Final answer
    x = 98,306.14

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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.