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Finding the Fourth Proportional to 123,926.64, 185,430.60 and 74,033.88

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Solution

The fourth proportional to 123,926.64, 185,430.60 and 74,033.88 is: 110,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,926.64 : 185,430.60 = 74,033.88 : x
  2. Step 2: Convert to fraction form
    123,926.64/185,430.60 = 74,033.88/x
  3. Step 3: Cross multiply
    123,926.64x = 185,430.60 × 74,033.88
  4. Step 4: Simplify right side
    123,926.64x = 13,728,146,788.73
  5. Step 5: Solve for x
    x = 13,728,146,788.73/123,926.64
  6. Step 6: Final answer
    x = 110,776.40

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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.