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Finding the Fourth Proportional to 107,384.81, 161,077.01 and 59,991.71

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Solution

The fourth proportional to 107,384.81, 161,077.01 and 59,991.71 is: 89,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,384.81 : 161,077.01 = 59,991.71 : x
  2. Step 2: Convert to fraction form
    107,384.81/161,077.01 = 59,991.71/x
  3. Step 3: Cross multiply
    107,384.81x = 161,077.01 × 59,991.71
  4. Step 4: Simplify right side
    107,384.81x = 9,663,284,166.24
  5. Step 5: Solve for x
    x = 9,663,284,166.24/107,384.81
  6. Step 6: Final answer
    x = 89,987.44

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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.