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Finding the Fourth Proportional to 73,637.91, 110,460.51 and 21,055.14

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Solution

The fourth proportional to 73,637.91, 110,460.51 and 21,055.14 is: 31,583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,637.91 : 110,460.51 = 21,055.14 : x
  2. Step 2: Convert to fraction form
    73,637.91/110,460.51 = 21,055.14/x
  3. Step 3: Cross multiply
    73,637.91x = 110,460.51 × 21,055.14
  4. Step 4: Simplify right side
    73,637.91x = 2,325,761,502.52
  5. Step 5: Solve for x
    x = 2,325,761,502.52/73,637.91
  6. Step 6: Final answer
    x = 31,583.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.