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Finding the Fourth Proportional to 72,366.66, 108,408.69 and 49,873.32

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Solution

The fourth proportional to 72,366.66, 108,408.69 and 49,873.32 is: 74,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,366.66 : 108,408.69 = 49,873.32 : x
  2. Step 2: Convert to fraction form
    72,366.66/108,408.69 = 49,873.32/x
  3. Step 3: Cross multiply
    72,366.66x = 108,408.69 × 49,873.32
  4. Step 4: Simplify right side
    72,366.66x = 5,406,701,287.15
  5. Step 5: Solve for x
    x = 5,406,701,287.15/72,366.66
  6. Step 6: Final answer
    x = 74,712.60

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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.