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Finding the Fourth Proportional to 445,737.66, 668,704.92 and 165,254.94

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Solution

The fourth proportional to 445,737.66, 668,704.92 and 165,254.94 is: 247,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,737.66 : 668,704.92 = 165,254.94 : x
  2. Step 2: Convert to fraction form
    445,737.66/668,704.92 = 165,254.94/x
  3. Step 3: Cross multiply
    445,737.66x = 668,704.92 × 165,254.94
  4. Step 4: Simplify right side
    445,737.66x = 110,506,791,432.31
  5. Step 5: Solve for x
    x = 110,506,791,432.31/445,737.66
  6. Step 6: Final answer
    x = 247,918.90

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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.