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Finding the Fourth Proportional to 103,159.73, 154,688.56 and 36,589.88

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Solution

The fourth proportional to 103,159.73, 154,688.56 and 36,589.88 is: 54,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,159.73 : 154,688.56 = 36,589.88 : x
  2. Step 2: Convert to fraction form
    103,159.73/154,688.56 = 36,589.88/x
  3. Step 3: Cross multiply
    103,159.73x = 154,688.56 × 36,589.88
  4. Step 4: Simplify right side
    103,159.73x = 5,660,036,143.02
  5. Step 5: Solve for x
    x = 5,660,036,143.02/103,159.73
  6. Step 6: Final answer
    x = 54,866.72

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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.