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Finding the Fourth Proportional to 240,673.72, 332,127.46 and 138,661.72

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Solution

The fourth proportional to 240,673.72, 332,127.46 and 138,661.72 is: 191,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,673.72 : 332,127.46 = 138,661.72 : x
  2. Step 2: Convert to fraction form
    240,673.72/332,127.46 = 138,661.72/x
  3. Step 3: Cross multiply
    240,673.72x = 332,127.46 × 138,661.72
  4. Step 4: Simplify right side
    240,673.72x = 46,053,364,862.83
  5. Step 5: Solve for x
    x = 46,053,364,862.83/240,673.72
  6. Step 6: Final answer
    x = 191,351.86

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1.5x scale

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.