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Finding the Fourth Proportional to 108,924.60, 163,386.90 and 38,806.20

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Solution

The fourth proportional to 108,924.60, 163,386.90 and 38,806.20 is: 58,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,924.60 : 163,386.90 = 38,806.20 : x
  2. Step 2: Convert to fraction form
    108,924.60/163,386.90 = 38,806.20/x
  3. Step 3: Cross multiply
    108,924.60x = 163,386.90 × 38,806.20
  4. Step 4: Simplify right side
    108,924.60x = 6,340,424,718.78
  5. Step 5: Solve for x
    x = 6,340,424,718.78/108,924.60
  6. Step 6: Final answer
    x = 58,209.30

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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.