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Finding the Fourth Proportional to 240,581.10, 332,017.32 and 138,604.71

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Solution

The fourth proportional to 240,581.10, 332,017.32 and 138,604.71 is: 191,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,581.10 : 332,017.32 = 138,604.71 : x
  2. Step 2: Convert to fraction form
    240,581.10/332,017.32 = 138,604.71/x
  3. Step 3: Cross multiply
    240,581.10x = 332,017.32 × 138,604.71
  4. Step 4: Simplify right side
    240,581.10x = 46,019,164,353.58
  5. Step 5: Solve for x
    x = 46,019,164,353.58/240,581.10
  6. Step 6: Final answer
    x = 191,283.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.