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Finding the Fourth Proportional to 69,875.82, 104,856.81 and 44,931.78

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Solution

The fourth proportional to 69,875.82, 104,856.81 and 44,931.78 is: 67,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,875.82 : 104,856.81 = 44,931.78 : x
  2. Step 2: Convert to fraction form
    69,875.82/104,856.81 = 44,931.78/x
  3. Step 3: Cross multiply
    69,875.82x = 104,856.81 × 44,931.78
  4. Step 4: Simplify right side
    69,875.82x = 4,711,403,118.42
  5. Step 5: Solve for x
    x = 4,711,403,118.42/69,875.82
  6. Step 6: Final answer
    x = 67,425.37

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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.