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Finding the Fourth Proportional to 69,896,062.20, 104,825,430.90 and 21,373,822.20

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Solution

The fourth proportional to 69,896,062.20, 104,825,430.90 and 21,373,822.20 is: 32,055,026.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,896,062.20 : 104,825,430.90 = 21,373,822.20 : x
  2. Step 2: Convert to fraction form
    69,896,062.20/104,825,430.90 = 21,373,822.20/x
  3. Step 3: Cross multiply
    69,896,062.20x = 104,825,430.90 × 21,373,822.20
  4. Step 4: Simplify right side
    69,896,062.20x = 2,240,520,122,094,986
  5. Step 5: Solve for x
    x = 2,240,520,122,094,986/69,896,062.20
  6. Step 6: Final answer
    x = 32,055,026.44

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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.