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Finding the Fourth Proportional to 72,873.30, 100,611.58 and 59,476.50

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Solution

The fourth proportional to 72,873.30, 100,611.58 and 59,476.50 is: 82,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,873.30 : 100,611.58 = 59,476.50 : x
  2. Step 2: Convert to fraction form
    72,873.30/100,611.58 = 59,476.50/x
  3. Step 3: Cross multiply
    72,873.30x = 100,611.58 × 59,476.50
  4. Step 4: Simplify right side
    72,873.30x = 5,984,024,637.87
  5. Step 5: Solve for x
    x = 5,984,024,637.87/72,873.30
  6. Step 6: Final answer
    x = 82,115.46

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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.