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Finding the Fourth Proportional to 144,612.48, 199,574.08 and 80,954.24

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Solution

The fourth proportional to 144,612.48, 199,574.08 and 80,954.24 is: 111,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,612.48 : 199,574.08 = 80,954.24 : x
  2. Step 2: Convert to fraction form
    144,612.48/199,574.08 = 80,954.24/x
  3. Step 3: Cross multiply
    144,612.48x = 199,574.08 × 80,954.24
  4. Step 4: Simplify right side
    144,612.48x = 16,156,367,970.10
  5. Step 5: Solve for x
    x = 16,156,367,970.10/144,612.48
  6. Step 6: Final answer
    x = 111,721.81

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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.