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Finding the Fourth Proportional to 108,735.20, 163,102.80 and 94,911.20

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Solution

The fourth proportional to 108,735.20, 163,102.80 and 94,911.20 is: 142,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,735.20 : 163,102.80 = 94,911.20 : x
  2. Step 2: Convert to fraction form
    108,735.20/163,102.80 = 94,911.20/x
  3. Step 3: Cross multiply
    108,735.20x = 163,102.80 × 94,911.20
  4. Step 4: Simplify right side
    108,735.20x = 15,480,282,471.36
  5. Step 5: Solve for x
    x = 15,480,282,471.36/108,735.20
  6. Step 6: Final answer
    x = 142,366.80

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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.