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Finding the Fourth Proportional to 191,462.12, 287,251.74 and 98,033.96

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Solution

The fourth proportional to 191,462.12, 287,251.74 and 98,033.96 is: 147,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,462.12 : 287,251.74 = 98,033.96 : x
  2. Step 2: Convert to fraction form
    191,462.12/287,251.74 = 98,033.96/x
  3. Step 3: Cross multiply
    191,462.12x = 287,251.74 × 98,033.96
  4. Step 4: Simplify right side
    191,462.12x = 28,160,425,589.09
  5. Step 5: Solve for x
    x = 28,160,425,589.09/191,462.12
  6. Step 6: Final answer
    x = 147,080.92

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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.