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Finding the Fourth Proportional to 123,656.13, 185,359.56 and 48,747.28

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Solution

The fourth proportional to 123,656.13, 185,359.56 and 48,747.28 is: 73,071.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,656.13 : 185,359.56 = 48,747.28 : x
  2. Step 2: Convert to fraction form
    123,656.13/185,359.56 = 48,747.28/x
  3. Step 3: Cross multiply
    123,656.13x = 185,359.56 × 48,747.28
  4. Step 4: Simplify right side
    123,656.13x = 9,035,774,372.00
  5. Step 5: Solve for x
    x = 9,035,774,372.00/123,656.13
  6. Step 6: Final answer
    x = 73,071.79

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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.