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Finding the Fourth Proportional to 69,732, 104,977.45 and 63,531.86

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Solution

The fourth proportional to 69,732, 104,977.45 and 63,531.86 is: 95,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,732 : 104,977.45 = 63,531.86 : x
  2. Step 2: Convert to fraction form
    69,732/104,977.45 = 63,531.86/x
  3. Step 3: Cross multiply
    69,732x = 104,977.45 × 63,531.86
  4. Step 4: Simplify right side
    69,732x = 6,669,412,656.56
  5. Step 5: Solve for x
    x = 6,669,412,656.56/69,732
  6. Step 6: Final answer
    x = 95,643.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.