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Finding the Fourth Proportional to 342,522.62, 513,621.96 and 102,543.87

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Solution

The fourth proportional to 342,522.62, 513,621.96 and 102,543.87 is: 153,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,522.62 : 513,621.96 = 102,543.87 : x
  2. Step 2: Convert to fraction form
    342,522.62/513,621.96 = 102,543.87/x
  3. Step 3: Cross multiply
    342,522.62x = 513,621.96 × 102,543.87
  4. Step 4: Simplify right side
    342,522.62x = 52,668,785,613.74
  5. Step 5: Solve for x
    x = 52,668,785,613.74/342,522.62
  6. Step 6: Final answer
    x = 153,767.32

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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.