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Finding the Fourth Proportional to 110,503.77, 152,513.49 and 65,192.84

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Solution

The fourth proportional to 110,503.77, 152,513.49 and 65,192.84 is: 89,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,503.77 : 152,513.49 = 65,192.84 : x
  2. Step 2: Convert to fraction form
    110,503.77/152,513.49 = 65,192.84/x
  3. Step 3: Cross multiply
    110,503.77x = 152,513.49 × 65,192.84
  4. Step 4: Simplify right side
    110,503.77x = 9,942,787,551.41
  5. Step 5: Solve for x
    x = 9,942,787,551.41/110,503.77
  6. Step 6: Final answer
    x = 89,976.91

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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.