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Finding the Fourth Proportional to 59,122.46, 81,619.09 and 45,663.50

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Solution

The fourth proportional to 59,122.46, 81,619.09 and 45,663.50 is: 63,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,122.46 : 81,619.09 = 45,663.50 : x
  2. Step 2: Convert to fraction form
    59,122.46/81,619.09 = 45,663.50/x
  3. Step 3: Cross multiply
    59,122.46x = 81,619.09 × 45,663.50
  4. Step 4: Simplify right side
    59,122.46x = 3,727,012,793.96
  5. Step 5: Solve for x
    x = 3,727,012,793.96/59,122.46
  6. Step 6: Final answer
    x = 63,038.87

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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.