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Finding the Fourth Proportional to 171,625.40, 257,438.10 and 97,897.40

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Solution

The fourth proportional to 171,625.40, 257,438.10 and 97,897.40 is: 146,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,625.40 : 257,438.10 = 97,897.40 : x
  2. Step 2: Convert to fraction form
    171,625.40/257,438.10 = 97,897.40/x
  3. Step 3: Cross multiply
    171,625.40x = 257,438.10 × 97,897.40
  4. Step 4: Simplify right side
    171,625.40x = 25,202,520,650.94
  5. Step 5: Solve for x
    x = 25,202,520,650.94/171,625.40
  6. Step 6: Final answer
    x = 146,846.10

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1.5x scale

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.