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Finding the Fourth Proportional to 115,491.83, 173,243.86 and 36,612.21

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Solution

The fourth proportional to 115,491.83, 173,243.86 and 36,612.21 is: 54,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,491.83 : 173,243.86 = 36,612.21 : x
  2. Step 2: Convert to fraction form
    115,491.83/173,243.86 = 36,612.21/x
  3. Step 3: Cross multiply
    115,491.83x = 173,243.86 × 36,612.21
  4. Step 4: Simplify right side
    115,491.83x = 6,342,840,400.47
  5. Step 5: Solve for x
    x = 6,342,840,400.47/115,491.83
  6. Step 6: Final answer
    x = 54,920.25

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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.