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Finding the Fourth Proportional to 110,449.36, 152,510 and 90,034.63

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Solution

The fourth proportional to 110,449.36, 152,510 and 90,034.63 is: 124,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,449.36 : 152,510 = 90,034.63 : x
  2. Step 2: Convert to fraction form
    110,449.36/152,510 = 90,034.63/x
  3. Step 3: Cross multiply
    110,449.36x = 152,510 × 90,034.63
  4. Step 4: Simplify right side
    110,449.36x = 13,731,181,421.30
  5. Step 5: Solve for x
    x = 13,731,181,421.30/110,449.36
  6. Step 6: Final answer
    x = 124,321.06

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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.