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Finding the Fourth Proportional to 157,558.68, 217,433.34 and 85,938.44

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Solution

The fourth proportional to 157,558.68, 217,433.34 and 85,938.44 is: 118,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,558.68 : 217,433.34 = 85,938.44 : x
  2. Step 2: Convert to fraction form
    157,558.68/217,433.34 = 85,938.44/x
  3. Step 3: Cross multiply
    157,558.68x = 217,433.34 × 85,938.44
  4. Step 4: Simplify right side
    157,558.68x = 18,685,882,043.59
  5. Step 5: Solve for x
    x = 18,685,882,043.59/157,558.68
  6. Step 6: Final answer
    x = 118,596.34

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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.