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Finding the Fourth Proportional to 191,891.40, 287,577.90 and 169,600.20

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Solution

The fourth proportional to 191,891.40, 287,577.90 and 169,600.20 is: 254,171.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,891.40 : 287,577.90 = 169,600.20 : x
  2. Step 2: Convert to fraction form
    191,891.40/287,577.90 = 169,600.20/x
  3. Step 3: Cross multiply
    191,891.40x = 287,577.90 × 169,600.20
  4. Step 4: Simplify right side
    191,891.40x = 48,773,269,355.58
  5. Step 5: Solve for x
    x = 48,773,269,355.58/191,891.40
  6. Step 6: Final answer
    x = 254,171.21

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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.