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Finding the Fourth Proportional to 342,529.10, 513,793.65 and 93,211.10

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Solution

The fourth proportional to 342,529.10, 513,793.65 and 93,211.10 is: 139,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,529.10 : 513,793.65 = 93,211.10 : x
  2. Step 2: Convert to fraction form
    342,529.10/513,793.65 = 93,211.10/x
  3. Step 3: Cross multiply
    342,529.10x = 513,793.65 × 93,211.10
  4. Step 4: Simplify right side
    342,529.10x = 47,891,271,289.52
  5. Step 5: Solve for x
    x = 47,891,271,289.52/342,529.10
  6. Step 6: Final answer
    x = 139,816.65

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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.