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Finding the Fourth Proportional to 148,506.40, 222,500.40 and 127,770.40

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Solution

The fourth proportional to 148,506.40, 222,500.40 and 127,770.40 is: 191,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,506.40 : 222,500.40 = 127,770.40 : x
  2. Step 2: Convert to fraction form
    148,506.40/222,500.40 = 127,770.40/x
  3. Step 3: Cross multiply
    148,506.40x = 222,500.40 × 127,770.40
  4. Step 4: Simplify right side
    148,506.40x = 28,428,965,108.16
  5. Step 5: Solve for x
    x = 28,428,965,108.16/148,506.40
  6. Step 6: Final answer
    x = 191,432.59

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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.