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Finding the Fourth Proportional to 144,348.62, 199,192.99 and 79,814.10

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Solution

The fourth proportional to 144,348.62, 199,192.99 and 79,814.10 is: 110,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,348.62 : 199,192.99 = 79,814.10 : x
  2. Step 2: Convert to fraction form
    144,348.62/199,192.99 = 79,814.10/x
  3. Step 3: Cross multiply
    144,348.62x = 199,192.99 × 79,814.10
  4. Step 4: Simplify right side
    144,348.62x = 15,898,409,223.16
  5. Step 5: Solve for x
    x = 15,898,409,223.16/144,348.62
  6. Step 6: Final answer
    x = 110,138.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.