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Finding the Fourth Proportional to 115,422.56, 173,156.28 and 44,340

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Solution

The fourth proportional to 115,422.56, 173,156.28 and 44,340 is: 66,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.56 : 173,156.28 = 44,340 : x
  2. Step 2: Convert to fraction form
    115,422.56/173,156.28 = 44,340/x
  3. Step 3: Cross multiply
    115,422.56x = 173,156.28 × 44,340
  4. Step 4: Simplify right side
    115,422.56x = 7,677,749,455.20
  5. Step 5: Solve for x
    x = 7,677,749,455.20/115,422.56
  6. Step 6: Final answer
    x = 66,518.62

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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.