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Finding the Fourth Proportional to 90,370.84, 124,722.84 and 52,647.52

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Solution

The fourth proportional to 90,370.84, 124,722.84 and 52,647.52 is: 72,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,370.84 : 124,722.84 = 52,647.52 : x
  2. Step 2: Convert to fraction form
    90,370.84/124,722.84 = 52,647.52/x
  3. Step 3: Cross multiply
    90,370.84x = 124,722.84 × 52,647.52
  4. Step 4: Simplify right side
    90,370.84x = 6,566,348,213.36
  5. Step 5: Solve for x
    x = 6,566,348,213.36/90,370.84
  6. Step 6: Final answer
    x = 72,660.03

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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.