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Finding the Fourth Proportional to 248,539.87, 372,812.24 and 71,045.65

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Solution

The fourth proportional to 248,539.87, 372,812.24 and 71,045.65 is: 106,569.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,539.87 : 372,812.24 = 71,045.65 : x
  2. Step 2: Convert to fraction form
    248,539.87/372,812.24 = 71,045.65/x
  3. Step 3: Cross multiply
    248,539.87x = 372,812.24 × 71,045.65
  4. Step 4: Simplify right side
    248,539.87x = 26,486,687,918.76
  5. Step 5: Solve for x
    x = 26,486,687,918.76/248,539.87
  6. Step 6: Final answer
    x = 106,569.17

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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.