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Finding the Fourth Proportional to 118,281.80, 177,471.30 and 43,437.80

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Solution

The fourth proportional to 118,281.80, 177,471.30 and 43,437.80 is: 65,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,281.80 : 177,471.30 = 43,437.80 : x
  2. Step 2: Convert to fraction form
    118,281.80/177,471.30 = 43,437.80/x
  3. Step 3: Cross multiply
    118,281.80x = 177,471.30 × 43,437.80
  4. Step 4: Simplify right side
    118,281.80x = 7,708,962,835.14
  5. Step 5: Solve for x
    x = 7,708,962,835.14/118,281.80
  6. Step 6: Final answer
    x = 65,174.55

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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.