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Finding the Fourth Proportional to 107,864.55, 161,869.72 and 37,744.47

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Solution

The fourth proportional to 107,864.55, 161,869.72 and 37,744.47 is: 56,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,864.55 : 161,869.72 = 37,744.47 : x
  2. Step 2: Convert to fraction form
    107,864.55/161,869.72 = 37,744.47/x
  3. Step 3: Cross multiply
    107,864.55x = 161,869.72 × 37,744.47
  4. Step 4: Simplify right side
    107,864.55x = 6,109,686,790.45
  5. Step 5: Solve for x
    x = 6,109,686,790.45/107,864.55
  6. Step 6: Final answer
    x = 56,642.21

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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.