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Finding the Fourth Proportional to 74,958.67, 103,432.97 and 48,137.51

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Solution

The fourth proportional to 74,958.67, 103,432.97 and 48,137.51 is: 66,423.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,958.67 : 103,432.97 = 48,137.51 : x
  2. Step 2: Convert to fraction form
    74,958.67/103,432.97 = 48,137.51/x
  3. Step 3: Cross multiply
    74,958.67x = 103,432.97 × 48,137.51
  4. Step 4: Simplify right side
    74,958.67x = 4,979,005,154.05
  5. Step 5: Solve for x
    x = 4,979,005,154.05/74,958.67
  6. Step 6: Final answer
    x = 66,423.34

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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.