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Finding the Fourth Proportional to 264,842.41, 365,485.61 and 143,981.05

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Solution

The fourth proportional to 264,842.41, 365,485.61 and 143,981.05 is: 198,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,842.41 : 365,485.61 = 143,981.05 : x
  2. Step 2: Convert to fraction form
    264,842.41/365,485.61 = 143,981.05/x
  3. Step 3: Cross multiply
    264,842.41x = 365,485.61 × 143,981.05
  4. Step 4: Simplify right side
    264,842.41x = 52,623,001,887.69
  5. Step 5: Solve for x
    x = 52,623,001,887.69/264,842.41
  6. Step 6: Final answer
    x = 198,695.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.