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Finding the Fourth Proportional to 445,552.28, 668,061.51 and 141,815.24

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Solution

The fourth proportional to 445,552.28, 668,061.51 and 141,815.24 is: 212,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,552.28 : 668,061.51 = 141,815.24 : x
  2. Step 2: Convert to fraction form
    445,552.28/668,061.51 = 141,815.24/x
  3. Step 3: Cross multiply
    445,552.28x = 668,061.51 × 141,815.24
  4. Step 4: Simplify right side
    445,552.28x = 94,741,303,375.41
  5. Step 5: Solve for x
    x = 94,741,303,375.41/445,552.28
  6. Step 6: Final answer
    x = 212,637.90

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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.