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Finding the Fourth Proportional to 174,319.78, 261,483.30 and 49,660.78

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Solution

The fourth proportional to 174,319.78, 261,483.30 and 49,660.78 is: 74,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,319.78 : 261,483.30 = 49,660.78 : x
  2. Step 2: Convert to fraction form
    174,319.78/261,483.30 = 49,660.78/x
  3. Step 3: Cross multiply
    174,319.78x = 261,483.30 × 49,660.78
  4. Step 4: Simplify right side
    174,319.78x = 12,985,464,634.97
  5. Step 5: Solve for x
    x = 12,985,464,634.97/174,319.78
  6. Step 6: Final answer
    x = 74,492.20

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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.