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Finding the Fourth Proportional to 240,561.61, 360,922.55 and 80,653.36

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Solution

The fourth proportional to 240,561.61, 360,922.55 and 80,653.36 is: 121,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,561.61 : 360,922.55 = 80,653.36 : x
  2. Step 2: Convert to fraction form
    240,561.61/360,922.55 = 80,653.36/x
  3. Step 3: Cross multiply
    240,561.61x = 360,922.55 × 80,653.36
  4. Step 4: Simplify right side
    240,561.61x = 29,109,616,856.31
  5. Step 5: Solve for x
    x = 29,109,616,856.31/240,561.61
  6. Step 6: Final answer
    x = 121,006.91

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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.