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Finding the Fourth Proportional to 74,922.30, 103,347.36 and 44,687.40

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Solution

The fourth proportional to 74,922.30, 103,347.36 and 44,687.40 is: 61,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922.30 : 103,347.36 = 44,687.40 : x
  2. Step 2: Convert to fraction form
    74,922.30/103,347.36 = 44,687.40/x
  3. Step 3: Cross multiply
    74,922.30x = 103,347.36 × 44,687.40
  4. Step 4: Simplify right side
    74,922.30x = 4,618,324,815.26
  5. Step 5: Solve for x
    x = 4,618,324,815.26/74,922.30
  6. Step 6: Final answer
    x = 61,641.52

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1.5x scale

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.