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Finding the Fourth Proportional to 66,156.98, 99,676.81 and 59,839.16

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Solution

The fourth proportional to 66,156.98, 99,676.81 and 59,839.16 is: 90,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,156.98 : 99,676.81 = 59,839.16 : x
  2. Step 2: Convert to fraction form
    66,156.98/99,676.81 = 59,839.16/x
  3. Step 3: Cross multiply
    66,156.98x = 99,676.81 × 59,839.16
  4. Step 4: Simplify right side
    66,156.98x = 5,964,576,581.88
  5. Step 5: Solve for x
    x = 5,964,576,581.88/66,156.98
  6. Step 6: Final answer
    x = 90,157.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.