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Finding the Fourth Proportional to 66,722.78, 100,068.45 and 24,579.98

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Solution

The fourth proportional to 66,722.78, 100,068.45 and 24,579.98 is: 36,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,722.78 : 100,068.45 = 24,579.98 : x
  2. Step 2: Convert to fraction form
    66,722.78/100,068.45 = 24,579.98/x
  3. Step 3: Cross multiply
    66,722.78x = 100,068.45 × 24,579.98
  4. Step 4: Simplify right side
    66,722.78x = 2,459,679,876.39
  5. Step 5: Solve for x
    x = 2,459,679,876.39/66,722.78
  6. Step 6: Final answer
    x = 36,864.17

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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.