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Finding the Fourth Proportional to 235,487.59, 353,181.94 and 77,679.07

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Solution

The fourth proportional to 235,487.59, 353,181.94 and 77,679.07 is: 116,502.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,487.59 : 353,181.94 = 77,679.07 : x
  2. Step 2: Convert to fraction form
    235,487.59/353,181.94 = 77,679.07/x
  3. Step 3: Cross multiply
    235,487.59x = 353,181.94 × 77,679.07
  4. Step 4: Simplify right side
    235,487.59x = 27,434,843,562.84
  5. Step 5: Solve for x
    x = 27,434,843,562.84/235,487.59
  6. Step 6: Final answer
    x = 116,502.29

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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.