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Finding the Fourth Proportional to 136,365.48, 204,581.02 and 42,871.16

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Solution

The fourth proportional to 136,365.48, 204,581.02 and 42,871.16 is: 64,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,365.48 : 204,581.02 = 42,871.16 : x
  2. Step 2: Convert to fraction form
    136,365.48/204,581.02 = 42,871.16/x
  3. Step 3: Cross multiply
    136,365.48x = 204,581.02 × 42,871.16
  4. Step 4: Simplify right side
    136,365.48x = 8,770,625,641.38
  5. Step 5: Solve for x
    x = 8,770,625,641.38/136,365.48
  6. Step 6: Final answer
    x = 64,317.05

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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.