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Finding the Fourth Proportional to 105,336.77, 145,364.87 and 60,012.77

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Solution

The fourth proportional to 105,336.77, 145,364.87 and 60,012.77 is: 82,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,336.77 : 145,364.87 = 60,012.77 : x
  2. Step 2: Convert to fraction form
    105,336.77/145,364.87 = 60,012.77/x
  3. Step 3: Cross multiply
    105,336.77x = 145,364.87 × 60,012.77
  4. Step 4: Simplify right side
    105,336.77x = 8,723,747,932.60
  5. Step 5: Solve for x
    x = 8,723,747,932.60/105,336.77
  6. Step 6: Final answer
    x = 82,817.69

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1.5x scale

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.