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Finding the Fourth Proportional to 173,043.60, 259,565.40 and 161,889.90

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Solution

The fourth proportional to 173,043.60, 259,565.40 and 161,889.90 is: 242,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,043.60 : 259,565.40 = 161,889.90 : x
  2. Step 2: Convert to fraction form
    173,043.60/259,565.40 = 161,889.90/x
  3. Step 3: Cross multiply
    173,043.60x = 259,565.40 × 161,889.90
  4. Step 4: Simplify right side
    173,043.60x = 42,021,016,649.46
  5. Step 5: Solve for x
    x = 42,021,016,649.46/173,043.60
  6. Step 6: Final answer
    x = 242,834.85

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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.