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Finding the Fourth Proportional to 79,713,298.80, 119,494,715.40 and 43,267,964.40

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Solution

The fourth proportional to 79,713,298.80, 119,494,715.40 and 43,267,964.40 is: 64,861,110.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,298.80 : 119,494,715.40 = 43,267,964.40 : x
  2. Step 2: Convert to fraction form
    79,713,298.80/119,494,715.40 = 43,267,964.40/x
  3. Step 3: Cross multiply
    79,713,298.80x = 119,494,715.40 × 43,267,964.40
  4. Step 4: Simplify right side
    79,713,298.80x = 5,170,293,091,915,332
  5. Step 5: Solve for x
    x = 5,170,293,091,915,332/79,713,298.80
  6. Step 6: Final answer
    x = 64,861,110.63

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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.