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Finding the Fourth Proportional to 144,293.68, 199,124.96 and 80,631.48

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Solution

The fourth proportional to 144,293.68, 199,124.96 and 80,631.48 is: 111,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293.68 : 199,124.96 = 80,631.48 : x
  2. Step 2: Convert to fraction form
    144,293.68/199,124.96 = 80,631.48/x
  3. Step 3: Cross multiply
    144,293.68x = 199,124.96 × 80,631.48
  4. Step 4: Simplify right side
    144,293.68x = 16,055,740,229.74
  5. Step 5: Solve for x
    x = 16,055,740,229.74/144,293.68
  6. Step 6: Final answer
    x = 111,271.26

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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.