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Finding the Fourth Proportional to 147,377.34, 220,854.78 and 84,066.48

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Solution

The fourth proportional to 147,377.34, 220,854.78 and 84,066.48 is: 125,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,377.34 : 220,854.78 = 84,066.48 : x
  2. Step 2: Convert to fraction form
    147,377.34/220,854.78 = 84,066.48/x
  3. Step 3: Cross multiply
    147,377.34x = 220,854.78 × 84,066.48
  4. Step 4: Simplify right side
    147,377.34x = 18,566,483,945.77
  5. Step 5: Solve for x
    x = 18,566,483,945.77/147,377.34
  6. Step 6: Final answer
    x = 125,979.23

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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.