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Finding the Fourth Proportional to 171,944.40, 257,697.90 and 83,006.40

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Solution

The fourth proportional to 171,944.40, 257,697.90 and 83,006.40 is: 124,404.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,944.40 : 257,697.90 = 83,006.40 : x
  2. Step 2: Convert to fraction form
    171,944.40/257,697.90 = 83,006.40/x
  3. Step 3: Cross multiply
    171,944.40x = 257,697.90 × 83,006.40
  4. Step 4: Simplify right side
    171,944.40x = 21,390,574,966.56
  5. Step 5: Solve for x
    x = 21,390,574,966.56/171,944.40
  6. Step 6: Final answer
    x = 124,404.02

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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.