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Finding the Fourth Proportional to 440,518.40, 660,802.72 and 124,950.48

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Solution

The fourth proportional to 440,518.40, 660,802.72 and 124,950.48 is: 187,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,518.40 : 660,802.72 = 124,950.48 : x
  2. Step 2: Convert to fraction form
    440,518.40/660,802.72 = 124,950.48/x
  3. Step 3: Cross multiply
    440,518.40x = 660,802.72 × 124,950.48
  4. Step 4: Simplify right side
    440,518.40x = 82,567,617,049.31
  5. Step 5: Solve for x
    x = 82,567,617,049.31/440,518.40
  6. Step 6: Final answer
    x = 187,432.85

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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.