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Finding the Fourth Proportional to 179,552.70, 269,005.05 and 85,851.90

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Solution

The fourth proportional to 179,552.70, 269,005.05 and 85,851.90 is: 128,622.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,552.70 : 269,005.05 = 85,851.90 : x
  2. Step 2: Convert to fraction form
    179,552.70/269,005.05 = 85,851.90/x
  3. Step 3: Cross multiply
    179,552.70x = 269,005.05 × 85,851.90
  4. Step 4: Simplify right side
    179,552.70x = 23,094,594,652.10
  5. Step 5: Solve for x
    x = 23,094,594,652.10/179,552.70
  6. Step 6: Final answer
    x = 128,622.93

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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.