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Finding the Fourth Proportional to 240,891.65, 360,943.28 and 145,833.71

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Solution

The fourth proportional to 240,891.65, 360,943.28 and 145,833.71 is: 218,511.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,891.65 : 360,943.28 = 145,833.71 : x
  2. Step 2: Convert to fraction form
    240,891.65/360,943.28 = 145,833.71/x
  3. Step 3: Cross multiply
    240,891.65x = 360,943.28 × 145,833.71
  4. Step 4: Simplify right side
    240,891.65x = 52,637,698,888.91
  5. Step 5: Solve for x
    x = 52,637,698,888.91/240,891.65
  6. Step 6: Final answer
    x = 218,511.93

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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.