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Finding the Fourth Proportional to 109,052.48, 150,497.76 and 61,320.80

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Solution

The fourth proportional to 109,052.48, 150,497.76 and 61,320.80 is: 84,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,052.48 : 150,497.76 = 61,320.80 : x
  2. Step 2: Convert to fraction form
    109,052.48/150,497.76 = 61,320.80/x
  3. Step 3: Cross multiply
    109,052.48x = 150,497.76 × 61,320.80
  4. Step 4: Simplify right side
    109,052.48x = 9,228,643,041.41
  5. Step 5: Solve for x
    x = 9,228,643,041.41/109,052.48
  6. Step 6: Final answer
    x = 84,625.71

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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.