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Finding the Fourth Proportional to 74,379.12, 102,661.20 and 46,068

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Solution

The fourth proportional to 74,379.12, 102,661.20 and 46,068 is: 63,585.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,379.12 : 102,661.20 = 46,068 : x
  2. Step 2: Convert to fraction form
    74,379.12/102,661.20 = 46,068/x
  3. Step 3: Cross multiply
    74,379.12x = 102,661.20 × 46,068
  4. Step 4: Simplify right side
    74,379.12x = 4,729,396,161.60
  5. Step 5: Solve for x
    x = 4,729,396,161.60/74,379.12
  6. Step 6: Final answer
    x = 63,585.00

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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.