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Finding the Fourth Proportional to 236,082.10, 354,123.15 and 156,939.70

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Solution

The fourth proportional to 236,082.10, 354,123.15 and 156,939.70 is: 235,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,082.10 : 354,123.15 = 156,939.70 : x
  2. Step 2: Convert to fraction form
    236,082.10/354,123.15 = 156,939.70/x
  3. Step 3: Cross multiply
    236,082.10x = 354,123.15 × 156,939.70
  4. Step 4: Simplify right side
    236,082.10x = 55,575,980,924.06
  5. Step 5: Solve for x
    x = 55,575,980,924.06/236,082.10
  6. Step 6: Final answer
    x = 235,409.55

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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.