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Finding the Fourth Proportional to 108,036.54, 162,064.53 and 55,412.46

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Solution

The fourth proportional to 108,036.54, 162,064.53 and 55,412.46 is: 83,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,036.54 : 162,064.53 = 55,412.46 : x
  2. Step 2: Convert to fraction form
    108,036.54/162,064.53 = 55,412.46/x
  3. Step 3: Cross multiply
    108,036.54x = 162,064.53 × 55,412.46
  4. Step 4: Simplify right side
    108,036.54x = 8,980,394,286.04
  5. Step 5: Solve for x
    x = 8,980,394,286.04/108,036.54
  6. Step 6: Final answer
    x = 83,123.68

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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.