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Finding the Fourth Proportional to 73,338.48, 109,904.04 and 36,428.40

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Solution

The fourth proportional to 73,338.48, 109,904.04 and 36,428.40 is: 54,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,338.48 : 109,904.04 = 36,428.40 : x
  2. Step 2: Convert to fraction form
    73,338.48/109,904.04 = 36,428.40/x
  3. Step 3: Cross multiply
    73,338.48x = 109,904.04 × 36,428.40
  4. Step 4: Simplify right side
    73,338.48x = 4,003,628,330.74
  5. Step 5: Solve for x
    x = 4,003,628,330.74/73,338.48
  6. Step 6: Final answer
    x = 54,591.10

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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.