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Finding the Fourth Proportional to 84,526.83, 126,794.30 and 69,708.69

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Solution

The fourth proportional to 84,526.83, 126,794.30 and 69,708.69 is: 104,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,526.83 : 126,794.30 = 69,708.69 : x
  2. Step 2: Convert to fraction form
    84,526.83/126,794.30 = 69,708.69/x
  3. Step 3: Cross multiply
    84,526.83x = 126,794.30 × 69,708.69
  4. Step 4: Simplify right side
    84,526.83x = 8,838,664,203.92
  5. Step 5: Solve for x
    x = 8,838,664,203.92/84,526.83
  6. Step 6: Final answer
    x = 104,566.38

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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.