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Finding the Fourth Proportional to 167,903.10, 251,854.65 and 148,220.10

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Solution

The fourth proportional to 167,903.10, 251,854.65 and 148,220.10 is: 222,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,903.10 : 251,854.65 = 148,220.10 : x
  2. Step 2: Convert to fraction form
    167,903.10/251,854.65 = 148,220.10/x
  3. Step 3: Cross multiply
    167,903.10x = 251,854.65 × 148,220.10
  4. Step 4: Simplify right side
    167,903.10x = 37,329,921,408.47
  5. Step 5: Solve for x
    x = 37,329,921,408.47/167,903.10
  6. Step 6: Final answer
    x = 222,330.15

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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.