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Finding the Fourth Proportional to 338,130.46, 507,452.66 and 125,099.97

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Solution

The fourth proportional to 338,130.46, 507,452.66 and 125,099.97 is: 187,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,130.46 : 507,452.66 = 125,099.97 : x
  2. Step 2: Convert to fraction form
    338,130.46/507,452.66 = 125,099.97/x
  3. Step 3: Cross multiply
    338,130.46x = 507,452.66 × 125,099.97
  4. Step 4: Simplify right side
    338,130.46x = 63,482,312,542.42
  5. Step 5: Solve for x
    x = 63,482,312,542.42/338,130.46
  6. Step 6: Final answer
    x = 187,745.03

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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.