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Finding the Fourth Proportional to 69,982,354.50, 105,020,354.27 and 29,041,792.26

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Solution

The fourth proportional to 69,982,354.50, 105,020,354.27 and 29,041,792.26 is: 43,582,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,982,354.50 : 105,020,354.27 = 29,041,792.26 : x
  2. Step 2: Convert to fraction form
    69,982,354.50/105,020,354.27 = 29,041,792.26/x
  3. Step 3: Cross multiply
    69,982,354.50x = 105,020,354.27 × 29,041,792.26
  4. Step 4: Simplify right side
    69,982,354.50x = 3,049,979,311,780,944
  5. Step 5: Solve for x
    x = 3,049,979,311,780,944/69,982,354.50
  6. Step 6: Final answer
    x = 43,582,119.14

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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.