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Finding the Fourth Proportional to 175,099.60, 262,649.40 and 86,526.10

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Solution

The fourth proportional to 175,099.60, 262,649.40 and 86,526.10 is: 129,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,099.60 : 262,649.40 = 86,526.10 : x
  2. Step 2: Convert to fraction form
    175,099.60/262,649.40 = 86,526.10/x
  3. Step 3: Cross multiply
    175,099.60x = 262,649.40 × 86,526.10
  4. Step 4: Simplify right side
    175,099.60x = 22,726,028,249.34
  5. Step 5: Solve for x
    x = 22,726,028,249.34/175,099.60
  6. Step 6: Final answer
    x = 129,789.15

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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.