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Finding the Fourth Proportional to 235,739.30, 353,663.82 and 67,261.93

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Solution

The fourth proportional to 235,739.30, 353,663.82 and 67,261.93 is: 100,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,739.30 : 353,663.82 = 67,261.93 : x
  2. Step 2: Convert to fraction form
    235,739.30/353,663.82 = 67,261.93/x
  3. Step 3: Cross multiply
    235,739.30x = 353,663.82 × 67,261.93
  4. Step 4: Simplify right side
    235,739.30x = 23,788,110,220.21
  5. Step 5: Solve for x
    x = 23,788,110,220.21/235,739.30
  6. Step 6: Final answer
    x = 100,908.55

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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.