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Finding the Fourth Proportional to 173,877.20, 261,132.60 and 103,893.20

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Solution

The fourth proportional to 173,877.20, 261,132.60 and 103,893.20 is: 156,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,877.20 : 261,132.60 = 103,893.20 : x
  2. Step 2: Convert to fraction form
    173,877.20/261,132.60 = 103,893.20/x
  3. Step 3: Cross multiply
    173,877.20x = 261,132.60 × 103,893.20
  4. Step 4: Simplify right side
    173,877.20x = 27,129,901,438.32
  5. Step 5: Solve for x
    x = 27,129,901,438.32/173,877.20
  6. Step 6: Final answer
    x = 156,029.09

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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.