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Finding the Fourth Proportional to 169,648.80, 254,570.40 and 64,543.20

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Solution

The fourth proportional to 169,648.80, 254,570.40 and 64,543.20 is: 96,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,648.80 : 254,570.40 = 64,543.20 : x
  2. Step 2: Convert to fraction form
    169,648.80/254,570.40 = 64,543.20/x
  3. Step 3: Cross multiply
    169,648.80x = 254,570.40 × 64,543.20
  4. Step 4: Simplify right side
    169,648.80x = 16,430,788,241.28
  5. Step 5: Solve for x
    x = 16,430,788,241.28/169,648.80
  6. Step 6: Final answer
    x = 96,851.78

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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.