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Finding the Fourth Proportional to 144,891.70, 217,337.55 and 109,899.70

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Solution

The fourth proportional to 144,891.70, 217,337.55 and 109,899.70 is: 164,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,891.70 : 217,337.55 = 109,899.70 : x
  2. Step 2: Convert to fraction form
    144,891.70/217,337.55 = 109,899.70/x
  3. Step 3: Cross multiply
    144,891.70x = 217,337.55 × 109,899.70
  4. Step 4: Simplify right side
    144,891.70x = 23,885,331,543.74
  5. Step 5: Solve for x
    x = 23,885,331,543.74/144,891.70
  6. Step 6: Final answer
    x = 164,849.55

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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.