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Finding the Fourth Proportional to 69,901,561.44, 104,852,251.44 and 18,783,581.40

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Solution

The fourth proportional to 69,901,561.44, 104,852,251.44 and 18,783,581.40 is: 28,175,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,901,561.44 : 104,852,251.44 = 18,783,581.40 : x
  2. Step 2: Convert to fraction form
    69,901,561.44/104,852,251.44 = 18,783,581.40/x
  3. Step 3: Cross multiply
    69,901,561.44x = 104,852,251.44 × 18,783,581.40
  4. Step 4: Simplify right side
    69,901,561.44x = 1,969,500,799,896,507
  5. Step 5: Solve for x
    x = 1,969,500,799,896,507/69,901,561.44
  6. Step 6: Final answer
    x = 28,175,347.72

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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.