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Finding the Fourth Proportional to 80,580.77, 120,756.55 and 59,353.89

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Solution

The fourth proportional to 80,580.77, 120,756.55 and 59,353.89 is: 88,946.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.77 : 120,756.55 = 59,353.89 : x
  2. Step 2: Convert to fraction form
    80,580.77/120,756.55 = 59,353.89/x
  3. Step 3: Cross multiply
    80,580.77x = 120,756.55 × 59,353.89
  4. Step 4: Simplify right side
    80,580.77x = 7,167,370,606.83
  5. Step 5: Solve for x
    x = 7,167,370,606.83/80,580.77
  6. Step 6: Final answer
    x = 88,946.42

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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.