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Finding the Fourth Proportional to 64,932,471.72, 89,608,261.47 and 37,054,626.90

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Solution

The fourth proportional to 64,932,471.72, 89,608,261.47 and 37,054,626.90 is: 51,136,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,932,471.72 : 89,608,261.47 = 37,054,626.90 : x
  2. Step 2: Convert to fraction form
    64,932,471.72/89,608,261.47 = 37,054,626.90/x
  3. Step 3: Cross multiply
    64,932,471.72x = 89,608,261.47 × 37,054,626.90
  4. Step 4: Simplify right side
    64,932,471.72x = 3,320,400,695,453,510
  5. Step 5: Solve for x
    x = 3,320,400,695,453,510/64,932,471.72
  6. Step 6: Final answer
    x = 51,136,212.86

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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.