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Finding the Fourth Proportional to 79,908.79, 110,315.59 and 58,374.35

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Solution

The fourth proportional to 79,908.79, 110,315.59 and 58,374.35 is: 80,586.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,908.79 : 110,315.59 = 58,374.35 : x
  2. Step 2: Convert to fraction form
    79,908.79/110,315.59 = 58,374.35/x
  3. Step 3: Cross multiply
    79,908.79x = 110,315.59 × 58,374.35
  4. Step 4: Simplify right side
    79,908.79x = 6,439,600,569.24
  5. Step 5: Solve for x
    x = 6,439,600,569.24/79,908.79
  6. Step 6: Final answer
    x = 80,586.89

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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.