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Finding the Fourth Proportional to 342,632.85, 513,983.69 and 117,963.55

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Solution

The fourth proportional to 342,632.85, 513,983.69 and 117,963.55 is: 176,957.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,632.85 : 513,983.69 = 117,963.55 : x
  2. Step 2: Convert to fraction form
    342,632.85/513,983.69 = 117,963.55/x
  3. Step 3: Cross multiply
    342,632.85x = 513,983.69 × 117,963.55
  4. Step 4: Simplify right side
    342,632.85x = 60,631,340,714.50
  5. Step 5: Solve for x
    x = 60,631,340,714.50/342,632.85
  6. Step 6: Final answer
    x = 176,957.17

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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.