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Finding the Fourth Proportional to 73,720.41, 110,580.70 and 22,429.51

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Solution

The fourth proportional to 73,720.41, 110,580.70 and 22,429.51 is: 33,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,720.41 : 110,580.70 = 22,429.51 : x
  2. Step 2: Convert to fraction form
    73,720.41/110,580.70 = 22,429.51/x
  3. Step 3: Cross multiply
    73,720.41x = 110,580.70 × 22,429.51
  4. Step 4: Simplify right side
    73,720.41x = 2,480,270,641.76
  5. Step 5: Solve for x
    x = 2,480,270,641.76/73,720.41
  6. Step 6: Final answer
    x = 33,644.29

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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.