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Finding the Fourth Proportional to 116,883.30, 174,887.55 and 77,517.30

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Solution

The fourth proportional to 116,883.30, 174,887.55 and 77,517.30 is: 115,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,883.30 : 174,887.55 = 77,517.30 : x
  2. Step 2: Convert to fraction form
    116,883.30/174,887.55 = 77,517.30/x
  3. Step 3: Cross multiply
    116,883.30x = 174,887.55 × 77,517.30
  4. Step 4: Simplify right side
    116,883.30x = 13,556,810,679.62
  5. Step 5: Solve for x
    x = 13,556,810,679.62/116,883.30
  6. Step 6: Final answer
    x = 115,985.87

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1.5x scale

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.