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Finding the Fourth Proportional to 74,986.80, 103,505.40 and 44,794.32

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Solution

The fourth proportional to 74,986.80, 103,505.40 and 44,794.32 is: 61,830.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,986.80 : 103,505.40 = 44,794.32 : x
  2. Step 2: Convert to fraction form
    74,986.80/103,505.40 = 44,794.32/x
  3. Step 3: Cross multiply
    74,986.80x = 103,505.40 × 44,794.32
  4. Step 4: Simplify right side
    74,986.80x = 4,636,454,009.33
  5. Step 5: Solve for x
    x = 4,636,454,009.33/74,986.80
  6. Step 6: Final answer
    x = 61,830.27

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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.