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Finding the Fourth Proportional to 115,810.60, 173,813.10 and 56,696.80

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Solution

The fourth proportional to 115,810.60, 173,813.10 and 56,696.80 is: 85,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,810.60 : 173,813.10 = 56,696.80 : x
  2. Step 2: Convert to fraction form
    115,810.60/173,813.10 = 56,696.80/x
  3. Step 3: Cross multiply
    115,810.60x = 173,813.10 × 56,696.80
  4. Step 4: Simplify right side
    115,810.60x = 9,854,646,568.08
  5. Step 5: Solve for x
    x = 9,854,646,568.08/115,810.60
  6. Step 6: Final answer
    x = 85,092.79

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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.