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Finding the Fourth Proportional to 74,488.81, 102,816.38 and 44,295.40

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Solution

The fourth proportional to 74,488.81, 102,816.38 and 44,295.40 is: 61,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,488.81 : 102,816.38 = 44,295.40 : x
  2. Step 2: Convert to fraction form
    74,488.81/102,816.38 = 44,295.40/x
  3. Step 3: Cross multiply
    74,488.81x = 102,816.38 × 44,295.40
  4. Step 4: Simplify right side
    74,488.81x = 4,554,292,678.65
  5. Step 5: Solve for x
    x = 4,554,292,678.65/74,488.81
  6. Step 6: Final answer
    x = 61,140.63

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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.