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Finding the Fourth Proportional to 243,715.70, 365,581.03 and 66,226.46

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Solution

The fourth proportional to 243,715.70, 365,581.03 and 66,226.46 is: 99,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,715.70 : 365,581.03 = 66,226.46 : x
  2. Step 2: Convert to fraction form
    243,715.70/365,581.03 = 66,226.46/x
  3. Step 3: Cross multiply
    243,715.70x = 365,581.03 × 66,226.46
  4. Step 4: Simplify right side
    243,715.70x = 24,211,137,460.05
  5. Step 5: Solve for x
    x = 24,211,137,460.05/243,715.70
  6. Step 6: Final answer
    x = 99,341.72

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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.