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Finding the Fourth Proportional to 144,908.80, 217,363.20 and 51,402.40

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Solution

The fourth proportional to 144,908.80, 217,363.20 and 51,402.40 is: 77,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,908.80 : 217,363.20 = 51,402.40 : x
  2. Step 2: Convert to fraction form
    144,908.80/217,363.20 = 51,402.40/x
  3. Step 3: Cross multiply
    144,908.80x = 217,363.20 × 51,402.40
  4. Step 4: Simplify right side
    144,908.80x = 11,172,990,151.68
  5. Step 5: Solve for x
    x = 11,172,990,151.68/144,908.80
  6. Step 6: Final answer
    x = 77,103.60

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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.