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Finding the Fourth Proportional to 342,599.08, 513,909.90 and 117,957.16

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Solution

The fourth proportional to 342,599.08, 513,909.90 and 117,957.16 is: 176,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,599.08 : 513,909.90 = 117,957.16 : x
  2. Step 2: Convert to fraction form
    342,599.08/513,909.90 = 117,957.16/x
  3. Step 3: Cross multiply
    342,599.08x = 513,909.90 × 117,957.16
  4. Step 4: Simplify right side
    342,599.08x = 60,619,352,299.88
  5. Step 5: Solve for x
    x = 60,619,352,299.88/342,599.08
  6. Step 6: Final answer
    x = 176,939.62

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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.