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Finding the Fourth Proportional to 172,432.31, 237,958.70 and 96,980.81

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Solution

The fourth proportional to 172,432.31, 237,958.70 and 96,980.81 is: 133,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,432.31 : 237,958.70 = 96,980.81 : x
  2. Step 2: Convert to fraction form
    172,432.31/237,958.70 = 96,980.81/x
  3. Step 3: Cross multiply
    172,432.31x = 237,958.70 × 96,980.81
  4. Step 4: Simplify right side
    172,432.31x = 23,077,425,797.85
  5. Step 5: Solve for x
    x = 23,077,425,797.85/172,432.31
  6. Step 6: Final answer
    x = 133,834.70

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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.