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Finding the Fourth Proportional to 297,872.40, 446,808.60 and 171,901.20

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Solution

The fourth proportional to 297,872.40, 446,808.60 and 171,901.20 is: 257,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,872.40 : 446,808.60 = 171,901.20 : x
  2. Step 2: Convert to fraction form
    297,872.40/446,808.60 = 171,901.20/x
  3. Step 3: Cross multiply
    297,872.40x = 446,808.60 × 171,901.20
  4. Step 4: Simplify right side
    297,872.40x = 76,806,934,510.32
  5. Step 5: Solve for x
    x = 76,806,934,510.32/297,872.40
  6. Step 6: Final answer
    x = 257,851.80

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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.