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Finding the Fourth Proportional to 79,112.84, 118,682.94 and 26,527.40

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Solution

The fourth proportional to 79,112.84, 118,682.94 and 26,527.40 is: 39,795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,112.84 : 118,682.94 = 26,527.40 : x
  2. Step 2: Convert to fraction form
    79,112.84/118,682.94 = 26,527.40/x
  3. Step 3: Cross multiply
    79,112.84x = 118,682.94 × 26,527.40
  4. Step 4: Simplify right side
    79,112.84x = 3,148,349,822.56
  5. Step 5: Solve for x
    x = 3,148,349,822.56/79,112.84
  6. Step 6: Final answer
    x = 39,795.69

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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.