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Finding the Fourth Proportional to 125,167.48, 187,749.59 and 30,398.44

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Solution

The fourth proportional to 125,167.48, 187,749.59 and 30,398.44 is: 45,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,167.48 : 187,749.59 = 30,398.44 : x
  2. Step 2: Convert to fraction form
    125,167.48/187,749.59 = 30,398.44/x
  3. Step 3: Cross multiply
    125,167.48x = 187,749.59 × 30,398.44
  4. Step 4: Simplify right side
    125,167.48x = 5,707,294,646.64
  5. Step 5: Solve for x
    x = 5,707,294,646.64/125,167.48
  6. Step 6: Final answer
    x = 45,597.26

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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.