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Finding the Fourth Proportional to 157,488.45, 217,326.21 and 89,496.44

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Solution

The fourth proportional to 157,488.45, 217,326.21 and 89,496.44 is: 123,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,488.45 : 217,326.21 = 89,496.44 : x
  2. Step 2: Convert to fraction form
    157,488.45/217,326.21 = 89,496.44/x
  3. Step 3: Cross multiply
    157,488.45x = 217,326.21 × 89,496.44
  4. Step 4: Simplify right side
    157,488.45x = 19,449,923,484.01
  5. Step 5: Solve for x
    x = 19,449,923,484.01/157,488.45
  6. Step 6: Final answer
    x = 123,500.63

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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.