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Finding the Fourth Proportional to 79,266.40, 109,389.72 and 44,808.40

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Solution

The fourth proportional to 79,266.40, 109,389.72 and 44,808.40 is: 61,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266.40 : 109,389.72 = 44,808.40 : x
  2. Step 2: Convert to fraction form
    79,266.40/109,389.72 = 44,808.40/x
  3. Step 3: Cross multiply
    79,266.40x = 109,389.72 × 44,808.40
  4. Step 4: Simplify right side
    79,266.40x = 4,901,578,329.65
  5. Step 5: Solve for x
    x = 4,901,578,329.65/79,266.40
  6. Step 6: Final answer
    x = 61,836.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.