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Finding the Fourth Proportional to 118,194.75, 163,108.76 and 75,753.28

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Solution

The fourth proportional to 118,194.75, 163,108.76 and 75,753.28 is: 104,539.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,194.75 : 163,108.76 = 75,753.28 : x
  2. Step 2: Convert to fraction form
    118,194.75/163,108.76 = 75,753.28/x
  3. Step 3: Cross multiply
    118,194.75x = 163,108.76 × 75,753.28
  4. Step 4: Simplify right side
    118,194.75x = 12,356,023,391.85
  5. Step 5: Solve for x
    x = 12,356,023,391.85/118,194.75
  6. Step 6: Final answer
    x = 104,539.53

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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.