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Finding the Fourth Proportional to 144,293.85, 215,384.12 and 127,249.97

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Solution

The fourth proportional to 144,293.85, 215,384.12 and 127,249.97 is: 189,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293.85 : 215,384.12 = 127,249.97 : x
  2. Step 2: Convert to fraction form
    144,293.85/215,384.12 = 127,249.97/x
  3. Step 3: Cross multiply
    144,293.85x = 215,384.12 × 127,249.97
  4. Step 4: Simplify right side
    144,293.85x = 27,407,621,095.31
  5. Step 5: Solve for x
    x = 27,407,621,095.31/144,293.85
  6. Step 6: Final answer
    x = 189,943.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.