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Finding the Fourth Proportional to 74,797.52, 103,220.52 and 42,968.40

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Solution

The fourth proportional to 74,797.52, 103,220.52 and 42,968.40 is: 59,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,797.52 : 103,220.52 = 42,968.40 : x
  2. Step 2: Convert to fraction form
    74,797.52/103,220.52 = 42,968.40/x
  3. Step 3: Cross multiply
    74,797.52x = 103,220.52 × 42,968.40
  4. Step 4: Simplify right side
    74,797.52x = 4,435,220,591.57
  5. Step 5: Solve for x
    x = 4,435,220,591.57/74,797.52
  6. Step 6: Final answer
    x = 59,296.36

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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.