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Finding the Fourth Proportional to 87,599.84, 120,884.28 and 51,810.80

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Solution

The fourth proportional to 87,599.84, 120,884.28 and 51,810.80 is: 71,496.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,599.84 : 120,884.28 = 51,810.80 : x
  2. Step 2: Convert to fraction form
    87,599.84/120,884.28 = 51,810.80/x
  3. Step 3: Cross multiply
    87,599.84x = 120,884.28 × 51,810.80
  4. Step 4: Simplify right side
    87,599.84x = 6,263,111,254.22
  5. Step 5: Solve for x
    x = 6,263,111,254.22/87,599.84
  6. Step 6: Final answer
    x = 71,496.83

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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.