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Finding the Fourth Proportional to 118,143.40, 177,225.90 and 48,008.20

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Solution

The fourth proportional to 118,143.40, 177,225.90 and 48,008.20 is: 72,016.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,143.40 : 177,225.90 = 48,008.20 : x
  2. Step 2: Convert to fraction form
    118,143.40/177,225.90 = 48,008.20/x
  3. Step 3: Cross multiply
    118,143.40x = 177,225.90 × 48,008.20
  4. Step 4: Simplify right side
    118,143.40x = 8,508,296,452.38
  5. Step 5: Solve for x
    x = 8,508,296,452.38/118,143.40
  6. Step 6: Final answer
    x = 72,016.69

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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.