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Finding the Fourth Proportional to 342,416.65, 513,695.02 and 117,747.90

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Solution

The fourth proportional to 342,416.65, 513,695.02 and 117,747.90 is: 176,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,416.65 : 513,695.02 = 117,747.90 : x
  2. Step 2: Convert to fraction form
    342,416.65/513,695.02 = 117,747.90/x
  3. Step 3: Cross multiply
    342,416.65x = 513,695.02 × 117,747.90
  4. Step 4: Simplify right side
    342,416.65x = 60,486,509,845.46
  5. Step 5: Solve for x
    x = 60,486,509,845.46/342,416.65
  6. Step 6: Final answer
    x = 176,645.94

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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.