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Finding the Fourth Proportional to 243,583.88, 365,332.68 and 66,104.69

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Solution

The fourth proportional to 243,583.88, 365,332.68 and 66,104.69 is: 99,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,583.88 : 365,332.68 = 66,104.69 : x
  2. Step 2: Convert to fraction form
    243,583.88/365,332.68 = 66,104.69/x
  3. Step 3: Cross multiply
    243,583.88x = 365,332.68 × 66,104.69
  4. Step 4: Simplify right side
    243,583.88x = 24,150,201,731.61
  5. Step 5: Solve for x
    x = 24,150,201,731.61/243,583.88
  6. Step 6: Final answer
    x = 99,145.32

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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.