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Finding the Fourth Proportional to 366,513.85, 549,856.86 and 113,781.43

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Solution

The fourth proportional to 366,513.85, 549,856.86 and 113,781.43 is: 170,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,513.85 : 549,856.86 = 113,781.43 : x
  2. Step 2: Convert to fraction form
    366,513.85/549,856.86 = 113,781.43/x
  3. Step 3: Cross multiply
    366,513.85x = 549,856.86 × 113,781.43
  4. Step 4: Simplify right side
    366,513.85x = 62,563,499,826.11
  5. Step 5: Solve for x
    x = 62,563,499,826.11/366,513.85
  6. Step 6: Final answer
    x = 170,698.87

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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.