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Finding the Fourth Proportional to 338,581.71, 507,873.38 and 85,862.25

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Solution

The fourth proportional to 338,581.71, 507,873.38 and 85,862.25 is: 128,793.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,581.71 : 507,873.38 = 85,862.25 : x
  2. Step 2: Convert to fraction form
    338,581.71/507,873.38 = 85,862.25/x
  3. Step 3: Cross multiply
    338,581.71x = 507,873.38 × 85,862.25
  4. Step 4: Simplify right side
    338,581.71x = 43,607,150,692.59
  5. Step 5: Solve for x
    x = 43,607,150,692.59/338,581.71
  6. Step 6: Final answer
    x = 128,793.58

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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.