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Finding the Fourth Proportional to 69,803.37, 96,386.83 and 64,738.08

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Solution

The fourth proportional to 69,803.37, 96,386.83 and 64,738.08 is: 89,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,803.37 : 96,386.83 = 64,738.08 : x
  2. Step 2: Convert to fraction form
    69,803.37/96,386.83 = 64,738.08/x
  3. Step 3: Cross multiply
    69,803.37x = 96,386.83 × 64,738.08
  4. Step 4: Simplify right side
    69,803.37x = 6,239,898,149.64
  5. Step 5: Solve for x
    x = 6,239,898,149.64/69,803.37
  6. Step 6: Final answer
    x = 89,392.51

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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.