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Finding the Fourth Proportional to 104,376, 144,034.68 and 56,627.52

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Solution

The fourth proportional to 104,376, 144,034.68 and 56,627.52 is: 78,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,376 : 144,034.68 = 56,627.52 : x
  2. Step 2: Convert to fraction form
    104,376/144,034.68 = 56,627.52/x
  3. Step 3: Cross multiply
    104,376x = 144,034.68 × 56,627.52
  4. Step 4: Simplify right side
    104,376x = 8,156,326,722.39
  5. Step 5: Solve for x
    x = 8,156,326,722.39/104,376
  6. Step 6: Final answer
    x = 78,143.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.