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Finding the Fourth Proportional to 90,468.72, 124,828.13 and 52,227.60

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Solution

The fourth proportional to 90,468.72, 124,828.13 and 52,227.60 is: 72,063.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,468.72 : 124,828.13 = 52,227.60 : x
  2. Step 2: Convert to fraction form
    90,468.72/124,828.13 = 52,227.60/x
  3. Step 3: Cross multiply
    90,468.72x = 124,828.13 × 52,227.60
  4. Step 4: Simplify right side
    90,468.72x = 6,519,473,642.39
  5. Step 5: Solve for x
    x = 6,519,473,642.39/90,468.72
  6. Step 6: Final answer
    x = 72,063.29

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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.