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Finding the Fourth Proportional to 74,172.01, 111,258 and 49,260.71

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Solution

The fourth proportional to 74,172.01, 111,258 and 49,260.71 is: 73,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.01 : 111,258 = 49,260.71 : x
  2. Step 2: Convert to fraction form
    74,172.01/111,258 = 49,260.71/x
  3. Step 3: Cross multiply
    74,172.01x = 111,258 × 49,260.71
  4. Step 4: Simplify right side
    74,172.01x = 5,480,648,073.18
  5. Step 5: Solve for x
    x = 5,480,648,073.18/74,172.01
  6. Step 6: Final answer
    x = 73,891.06

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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.