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Finding the Fourth Proportional to 108,772.40, 150,258.84 and 83,941.04

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Solution

The fourth proportional to 108,772.40, 150,258.84 and 83,941.04 is: 115,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,772.40 : 150,258.84 = 83,941.04 : x
  2. Step 2: Convert to fraction form
    108,772.40/150,258.84 = 83,941.04/x
  3. Step 3: Cross multiply
    108,772.40x = 150,258.84 × 83,941.04
  4. Step 4: Simplify right side
    108,772.40x = 12,612,883,298.79
  5. Step 5: Solve for x
    x = 12,612,883,298.79/108,772.40
  6. Step 6: Final answer
    x = 115,956.65

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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.