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Finding the Fourth Proportional to 72,453.69, 108,641.66 and 32,975.91

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Solution

The fourth proportional to 72,453.69, 108,641.66 and 32,975.91 is: 49,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,453.69 : 108,641.66 = 32,975.91 : x
  2. Step 2: Convert to fraction form
    72,453.69/108,641.66 = 32,975.91/x
  3. Step 3: Cross multiply
    72,453.69x = 108,641.66 × 32,975.91
  4. Step 4: Simplify right side
    72,453.69x = 3,582,557,437.53
  5. Step 5: Solve for x
    x = 3,582,557,437.53/72,453.69
  6. Step 6: Final answer
    x = 49,446.17

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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.