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Finding the Fourth Proportional to 157,573.40, 217,443.30 and 85,952.84

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Solution

The fourth proportional to 157,573.40, 217,443.30 and 85,952.84 is: 118,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,573.40 : 217,443.30 = 85,952.84 : x
  2. Step 2: Convert to fraction form
    157,573.40/217,443.30 = 85,952.84/x
  3. Step 3: Cross multiply
    157,573.40x = 217,443.30 × 85,952.84
  4. Step 4: Simplify right side
    157,573.40x = 18,689,869,173.97
  5. Step 5: Solve for x
    x = 18,689,869,173.97/157,573.40
  6. Step 6: Final answer
    x = 118,610.56

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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.