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Finding the Fourth Proportional to 66,848.10, 100,299.15 and 29,415.30

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Solution

The fourth proportional to 66,848.10, 100,299.15 and 29,415.30 is: 44,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,848.10 : 100,299.15 = 29,415.30 : x
  2. Step 2: Convert to fraction form
    66,848.10/100,299.15 = 29,415.30/x
  3. Step 3: Cross multiply
    66,848.10x = 100,299.15 × 29,415.30
  4. Step 4: Simplify right side
    66,848.10x = 2,950,329,587.00
  5. Step 5: Solve for x
    x = 2,950,329,587.00/66,848.10
  6. Step 6: Final answer
    x = 44,134.83

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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.