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Finding the Fourth Proportional to 240,891.06, 332,420.84 and 138,920.82

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Solution

The fourth proportional to 240,891.06, 332,420.84 and 138,920.82 is: 191,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,891.06 : 332,420.84 = 138,920.82 : x
  2. Step 2: Convert to fraction form
    240,891.06/332,420.84 = 138,920.82/x
  3. Step 3: Cross multiply
    240,891.06x = 332,420.84 × 138,920.82
  4. Step 4: Simplify right side
    240,891.06x = 46,180,175,677.89
  5. Step 5: Solve for x
    x = 46,180,175,677.89/240,891.06
  6. Step 6: Final answer
    x = 191,705.64

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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.