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Finding the Fourth Proportional to 169,570.44, 254,340.90 and 64,390.20

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Solution

The fourth proportional to 169,570.44, 254,340.90 and 64,390.20 is: 96,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,570.44 : 254,340.90 = 64,390.20 : x
  2. Step 2: Convert to fraction form
    169,570.44/254,340.90 = 64,390.20/x
  3. Step 3: Cross multiply
    169,570.44x = 254,340.90 × 64,390.20
  4. Step 4: Simplify right side
    169,570.44x = 16,377,061,419.18
  5. Step 5: Solve for x
    x = 16,377,061,419.18/169,570.44
  6. Step 6: Final answer
    x = 96,579.70

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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.