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Finding the Fourth Proportional to 115,876.40, 173,814.60 and 113,908.10

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Solution

The fourth proportional to 115,876.40, 173,814.60 and 113,908.10 is: 170,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,876.40 : 173,814.60 = 113,908.10 : x
  2. Step 2: Convert to fraction form
    115,876.40/173,814.60 = 113,908.10/x
  3. Step 3: Cross multiply
    115,876.40x = 173,814.60 × 113,908.10
  4. Step 4: Simplify right side
    115,876.40x = 19,798,890,838.26
  5. Step 5: Solve for x
    x = 19,798,890,838.26/115,876.40
  6. Step 6: Final answer
    x = 170,862.15

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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.