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Finding the Fourth Proportional to 110,515.56, 152,471.43 and 72,296.88

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Solution

The fourth proportional to 110,515.56, 152,471.43 and 72,296.88 is: 99,743.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,515.56 : 152,471.43 = 72,296.88 : x
  2. Step 2: Convert to fraction form
    110,515.56/152,471.43 = 72,296.88/x
  3. Step 3: Cross multiply
    110,515.56x = 152,471.43 × 72,296.88
  4. Step 4: Simplify right side
    110,515.56x = 11,023,208,678.14
  5. Step 5: Solve for x
    x = 11,023,208,678.14/110,515.56
  6. Step 6: Final answer
    x = 99,743.50

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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.