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Finding the Fourth Proportional to 179,312, 269,134.20 and 90,627.92

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Solution

The fourth proportional to 179,312, 269,134.20 and 90,627.92 is: 136,025.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,312 : 269,134.20 = 90,627.92 : x
  2. Step 2: Convert to fraction form
    179,312/269,134.20 = 90,627.92/x
  3. Step 3: Cross multiply
    179,312x = 269,134.20 × 90,627.92
  4. Step 4: Simplify right side
    179,312x = 24,391,072,746.86
  5. Step 5: Solve for x
    x = 24,391,072,746.86/179,312
  6. Step 6: Final answer
    x = 136,025.88

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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.