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Finding the Fourth Proportional to 104,487.21, 144,192.90 and 59,174.01

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Solution

The fourth proportional to 104,487.21, 144,192.90 and 59,174.01 is: 81,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,487.21 : 144,192.90 = 59,174.01 : x
  2. Step 2: Convert to fraction form
    104,487.21/144,192.90 = 59,174.01/x
  3. Step 3: Cross multiply
    104,487.21x = 144,192.90 × 59,174.01
  4. Step 4: Simplify right side
    104,487.21x = 8,532,472,106.53
  5. Step 5: Solve for x
    x = 8,532,472,106.53/104,487.21
  6. Step 6: Final answer
    x = 81,660.45

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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.