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Finding the Fourth Proportional to 144,449.65, 216,641.67 and 69,531.54

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Solution

The fourth proportional to 144,449.65, 216,641.67 and 69,531.54 is: 104,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,449.65 : 216,641.67 = 69,531.54 : x
  2. Step 2: Convert to fraction form
    144,449.65/216,641.67 = 69,531.54/x
  3. Step 3: Cross multiply
    144,449.65x = 216,641.67 × 69,531.54
  4. Step 4: Simplify right side
    144,449.65x = 15,063,427,860.06
  5. Step 5: Solve for x
    x = 15,063,427,860.06/144,449.65
  6. Step 6: Final answer
    x = 104,281.51

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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.