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Finding the Fourth Proportional to 169,325.07, 254,001.45 and 85,041.90

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Solution

The fourth proportional to 169,325.07, 254,001.45 and 85,041.90 is: 127,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,325.07 : 254,001.45 = 85,041.90 : x
  2. Step 2: Convert to fraction form
    169,325.07/254,001.45 = 85,041.90/x
  3. Step 3: Cross multiply
    169,325.07x = 254,001.45 × 85,041.90
  4. Step 4: Simplify right side
    169,325.07x = 21,600,765,910.76
  5. Step 5: Solve for x
    x = 21,600,765,910.76/169,325.07
  6. Step 6: Final answer
    x = 127,569.80

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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.