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Finding the Fourth Proportional to 243,645.94, 365,454.30 and 66,149.02

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Solution

The fourth proportional to 243,645.94, 365,454.30 and 66,149.02 is: 99,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,645.94 : 365,454.30 = 66,149.02 : x
  2. Step 2: Convert to fraction form
    243,645.94/365,454.30 = 66,149.02/x
  3. Step 3: Cross multiply
    243,645.94x = 365,454.30 × 66,149.02
  4. Step 4: Simplify right side
    243,645.94x = 24,174,443,799.79
  5. Step 5: Solve for x
    x = 24,174,443,799.79/243,645.94
  6. Step 6: Final answer
    x = 99,219.56

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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.