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Finding the Fourth Proportional to 158,898.88, 219,318.65 and 90,955.24

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Solution

The fourth proportional to 158,898.88, 219,318.65 and 90,955.24 is: 125,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,898.88 : 219,318.65 = 90,955.24 : x
  2. Step 2: Convert to fraction form
    158,898.88/219,318.65 = 90,955.24/x
  3. Step 3: Cross multiply
    158,898.88x = 219,318.65 × 90,955.24
  4. Step 4: Simplify right side
    158,898.88x = 19,948,180,447.23
  5. Step 5: Solve for x
    x = 19,948,180,447.23/158,898.88
  6. Step 6: Final answer
    x = 125,540.09

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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.