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Finding the Fourth Proportional to 88,173.60, 121,680.60 and 47,887.44

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Solution

The fourth proportional to 88,173.60, 121,680.60 and 47,887.44 is: 66,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,173.60 : 121,680.60 = 47,887.44 : x
  2. Step 2: Convert to fraction form
    88,173.60/121,680.60 = 47,887.44/x
  3. Step 3: Cross multiply
    88,173.60x = 121,680.60 × 47,887.44
  4. Step 4: Simplify right side
    88,173.60x = 5,826,972,431.66
  5. Step 5: Solve for x
    x = 5,826,972,431.66/88,173.60
  6. Step 6: Final answer
    x = 66,085.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.