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Finding the Fourth Proportional to 173,139.60, 259,709.40 and 106,363.20

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Solution

The fourth proportional to 173,139.60, 259,709.40 and 106,363.20 is: 159,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,139.60 : 259,709.40 = 106,363.20 : x
  2. Step 2: Convert to fraction form
    173,139.60/259,709.40 = 106,363.20/x
  3. Step 3: Cross multiply
    173,139.60x = 259,709.40 × 106,363.20
  4. Step 4: Simplify right side
    173,139.60x = 27,623,522,854.08
  5. Step 5: Solve for x
    x = 27,623,522,854.08/173,139.60
  6. Step 6: Final answer
    x = 159,544.80

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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.