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Finding the Fourth Proportional to 341,897.76, 512,868.53 and 131,535.70

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Solution

The fourth proportional to 341,897.76, 512,868.53 and 131,535.70 is: 197,311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,897.76 : 512,868.53 = 131,535.70 : x
  2. Step 2: Convert to fraction form
    341,897.76/512,868.53 = 131,535.70/x
  3. Step 3: Cross multiply
    341,897.76x = 512,868.53 × 131,535.70
  4. Step 4: Simplify right side
    341,897.76x = 67,460,517,879.50
  5. Step 5: Solve for x
    x = 67,460,517,879.50/341,897.76
  6. Step 6: Final answer
    x = 197,311.96

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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.