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Finding the Fourth Proportional to 74,463.28, 102,743.02 and 44,258.64

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Solution

The fourth proportional to 74,463.28, 102,743.02 and 44,258.64 is: 61,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,463.28 : 102,743.02 = 44,258.64 : x
  2. Step 2: Convert to fraction form
    74,463.28/102,743.02 = 44,258.64/x
  3. Step 3: Cross multiply
    74,463.28x = 102,743.02 × 44,258.64
  4. Step 4: Simplify right side
    74,463.28x = 4,547,266,334.69
  5. Step 5: Solve for x
    x = 4,547,266,334.69/74,463.28
  6. Step 6: Final answer
    x = 61,067.23

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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.