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Finding the Fourth Proportional to 191,774.20, 287,553.30 and 73,449.40

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Solution

The fourth proportional to 191,774.20, 287,553.30 and 73,449.40 is: 110,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,774.20 : 287,553.30 = 73,449.40 : x
  2. Step 2: Convert to fraction form
    191,774.20/287,553.30 = 73,449.40/x
  3. Step 3: Cross multiply
    191,774.20x = 287,553.30 × 73,449.40
  4. Step 4: Simplify right side
    191,774.20x = 21,120,617,353.02
  5. Step 5: Solve for x
    x = 21,120,617,353.02/191,774.20
  6. Step 6: Final answer
    x = 110,132.74

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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.