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Finding the Fourth Proportional to 148,971.80, 223,311.90 and 60,106.70

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Solution

The fourth proportional to 148,971.80, 223,311.90 and 60,106.70 is: 90,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,971.80 : 223,311.90 = 60,106.70 : x
  2. Step 2: Convert to fraction form
    148,971.80/223,311.90 = 60,106.70/x
  3. Step 3: Cross multiply
    148,971.80x = 223,311.90 × 60,106.70
  4. Step 4: Simplify right side
    148,971.80x = 13,422,541,379.73
  5. Step 5: Solve for x
    x = 13,422,541,379.73/148,971.80
  6. Step 6: Final answer
    x = 90,101.22

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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.