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Finding the Fourth Proportional to 114,959.55, 172,348.61 and 48,409.95

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Solution

The fourth proportional to 114,959.55, 172,348.61 and 48,409.95 is: 72,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,959.55 : 172,348.61 = 48,409.95 : x
  2. Step 2: Convert to fraction form
    114,959.55/172,348.61 = 48,409.95/x
  3. Step 3: Cross multiply
    114,959.55x = 172,348.61 × 48,409.95
  4. Step 4: Simplify right side
    114,959.55x = 8,343,387,350.62
  5. Step 5: Solve for x
    x = 8,343,387,350.62/114,959.55
  6. Step 6: Final answer
    x = 72,576.72

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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.