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Finding the Fourth Proportional to 79,261.92, 118,905.98 and 39,282.77

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Solution

The fourth proportional to 79,261.92, 118,905.98 and 39,282.77 is: 58,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.92 : 118,905.98 = 39,282.77 : x
  2. Step 2: Convert to fraction form
    79,261.92/118,905.98 = 39,282.77/x
  3. Step 3: Cross multiply
    79,261.92x = 118,905.98 × 39,282.77
  4. Step 4: Simplify right side
    79,261.92x = 4,670,956,364.82
  5. Step 5: Solve for x
    x = 4,670,956,364.82/79,261.92
  6. Step 6: Final answer
    x = 58,930.65

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1.5x scale

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.