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Finding the Fourth Proportional to 161,630.87, 223,070.96 and 97,960.55

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Solution

The fourth proportional to 161,630.87, 223,070.96 and 97,960.55 is: 135,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,630.87 : 223,070.96 = 97,960.55 : x
  2. Step 2: Convert to fraction form
    161,630.87/223,070.96 = 97,960.55/x
  3. Step 3: Cross multiply
    161,630.87x = 223,070.96 × 97,960.55
  4. Step 4: Simplify right side
    161,630.87x = 21,852,153,060.17
  5. Step 5: Solve for x
    x = 21,852,153,060.17/161,630.87
  6. Step 6: Final answer
    x = 135,197.90

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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.