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Finding the Fourth Proportional to 108,713.80, 163,070.70 and 93,680.20

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Solution

The fourth proportional to 108,713.80, 163,070.70 and 93,680.20 is: 140,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,713.80 : 163,070.70 = 93,680.20 : x
  2. Step 2: Convert to fraction form
    108,713.80/163,070.70 = 93,680.20/x
  3. Step 3: Cross multiply
    108,713.80x = 163,070.70 × 93,680.20
  4. Step 4: Simplify right side
    108,713.80x = 15,276,495,790.14
  5. Step 5: Solve for x
    x = 15,276,495,790.14/108,713.80
  6. Step 6: Final answer
    x = 140,520.30

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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.