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Finding the Fourth Proportional to 74,622, 102,975.97 and 44,400.40

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Solution

The fourth proportional to 74,622, 102,975.97 and 44,400.40 is: 61,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622 : 102,975.97 = 44,400.40 : x
  2. Step 2: Convert to fraction form
    74,622/102,975.97 = 44,400.40/x
  3. Step 3: Cross multiply
    74,622x = 102,975.97 × 44,400.40
  4. Step 4: Simplify right side
    74,622x = 4,572,174,258.39
  5. Step 5: Solve for x
    x = 4,572,174,258.39/74,622
  6. Step 6: Final answer
    x = 61,271.13

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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.