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Finding the Fourth Proportional to 108,910.40, 162,928.20 and 94,281.80

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Solution

The fourth proportional to 108,910.40, 162,928.20 and 94,281.80 is: 141,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,910.40 : 162,928.20 = 94,281.80 : x
  2. Step 2: Convert to fraction form
    108,910.40/162,928.20 = 94,281.80/x
  3. Step 3: Cross multiply
    108,910.40x = 162,928.20 × 94,281.80
  4. Step 4: Simplify right side
    108,910.40x = 15,361,163,966.76
  5. Step 5: Solve for x
    x = 15,361,163,966.76/108,910.40
  6. Step 6: Final answer
    x = 141,044.05

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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.