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Finding the Fourth Proportional to 337,987.12, 507,155.39 and 148,580.47

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Solution

The fourth proportional to 337,987.12, 507,155.39 and 148,580.47 is: 222,947.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,987.12 : 507,155.39 = 148,580.47 : x
  2. Step 2: Convert to fraction form
    337,987.12/507,155.39 = 148,580.47/x
  3. Step 3: Cross multiply
    337,987.12x = 507,155.39 × 148,580.47
  4. Step 4: Simplify right side
    337,987.12x = 75,353,382,930.55
  5. Step 5: Solve for x
    x = 75,353,382,930.55/337,987.12
  6. Step 6: Final answer
    x = 222,947.50

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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.