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Finding the Fourth Proportional to 115,959.16, 173,774.72 and 49,332.21

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Solution

The fourth proportional to 115,959.16, 173,774.72 and 49,332.21 is: 73,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,959.16 : 173,774.72 = 49,332.21 : x
  2. Step 2: Convert to fraction form
    115,959.16/173,774.72 = 49,332.21/x
  3. Step 3: Cross multiply
    115,959.16x = 173,774.72 × 49,332.21
  4. Step 4: Simplify right side
    115,959.16x = 8,572,690,173.91
  5. Step 5: Solve for x
    x = 8,572,690,173.91/115,959.16
  6. Step 6: Final answer
    x = 73,928.53

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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.