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Finding the Fourth Proportional to 191,781.13, 287,674.14 and 73,459.57

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Solution

The fourth proportional to 191,781.13, 287,674.14 and 73,459.57 is: 110,190.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,781.13 : 287,674.14 = 73,459.57 : x
  2. Step 2: Convert to fraction form
    191,781.13/287,674.14 = 73,459.57/x
  3. Step 3: Cross multiply
    191,781.13x = 287,674.14 × 73,459.57
  4. Step 4: Simplify right side
    191,781.13x = 21,132,418,624.52
  5. Step 5: Solve for x
    x = 21,132,418,624.52/191,781.13
  6. Step 6: Final answer
    x = 110,190.29

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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.