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Finding the Fourth Proportional to 144,499.80, 216,749.70 and 118,234.20

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Solution

The fourth proportional to 144,499.80, 216,749.70 and 118,234.20 is: 177,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,499.80 : 216,749.70 = 118,234.20 : x
  2. Step 2: Convert to fraction form
    144,499.80/216,749.70 = 118,234.20/x
  3. Step 3: Cross multiply
    144,499.80x = 216,749.70 × 118,234.20
  4. Step 4: Simplify right side
    144,499.80x = 25,627,227,379.74
  5. Step 5: Solve for x
    x = 25,627,227,379.74/144,499.80
  6. Step 6: Final answer
    x = 177,351.30

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1.5x scale

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.