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Finding the Fourth Proportional to 65,371.84, 98,057.82 and 45,688.84

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Solution

The fourth proportional to 65,371.84, 98,057.82 and 45,688.84 is: 68,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,371.84 : 98,057.82 = 45,688.84 : x
  2. Step 2: Convert to fraction form
    65,371.84/98,057.82 = 45,688.84/x
  3. Step 3: Cross multiply
    65,371.84x = 98,057.82 × 45,688.84
  4. Step 4: Simplify right side
    65,371.84x = 4,480,148,048.73
  5. Step 5: Solve for x
    x = 4,480,148,048.73/65,371.84
  6. Step 6: Final answer
    x = 68,533.30

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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.