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Finding the Fourth Proportional to 191,433.96, 287,140.47 and 58,303.08

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Solution

The fourth proportional to 191,433.96, 287,140.47 and 58,303.08 is: 87,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,433.96 : 287,140.47 = 58,303.08 : x
  2. Step 2: Convert to fraction form
    191,433.96/287,140.47 = 58,303.08/x
  3. Step 3: Cross multiply
    191,433.96x = 287,140.47 × 58,303.08
  4. Step 4: Simplify right side
    191,433.96x = 16,741,173,793.65
  5. Step 5: Solve for x
    x = 16,741,173,793.65/191,433.96
  6. Step 6: Final answer
    x = 87,451.43

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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.