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Finding the Fourth Proportional to 107,718.56, 161,721.01 and 92,024.45

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Solution

The fourth proportional to 107,718.56, 161,721.01 and 92,024.45 is: 138,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,718.56 : 161,721.01 = 92,024.45 : x
  2. Step 2: Convert to fraction form
    107,718.56/161,721.01 = 92,024.45/x
  3. Step 3: Cross multiply
    107,718.56x = 161,721.01 × 92,024.45
  4. Step 4: Simplify right side
    107,718.56x = 14,882,287,303.62
  5. Step 5: Solve for x
    x = 14,882,287,303.62/107,718.56
  6. Step 6: Final answer
    x = 138,158.99

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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.