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Finding the Fourth Proportional to 144,889.32, 217,332.78 and 45,049.32

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Solution

The fourth proportional to 144,889.32, 217,332.78 and 45,049.32 is: 67,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.32 : 217,332.78 = 45,049.32 : x
  2. Step 2: Convert to fraction form
    144,889.32/217,332.78 = 45,049.32/x
  3. Step 3: Cross multiply
    144,889.32x = 217,332.78 × 45,049.32
  4. Step 4: Simplify right side
    144,889.32x = 9,790,693,952.71
  5. Step 5: Solve for x
    x = 9,790,693,952.71/144,889.32
  6. Step 6: Final answer
    x = 67,573.61

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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.