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Finding the Fourth Proportional to 108,586.80, 162,880.20 and 89,924.40

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Solution

The fourth proportional to 108,586.80, 162,880.20 and 89,924.40 is: 134,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,586.80 : 162,880.20 = 89,924.40 : x
  2. Step 2: Convert to fraction form
    108,586.80/162,880.20 = 89,924.40/x
  3. Step 3: Cross multiply
    108,586.80x = 162,880.20 × 89,924.40
  4. Step 4: Simplify right side
    108,586.80x = 14,646,904,256.88
  5. Step 5: Solve for x
    x = 14,646,904,256.88/108,586.80
  6. Step 6: Final answer
    x = 134,886.60

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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.