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Finding the Fourth Proportional to 74,951.99, 103,435.10 and 40,961.91

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Solution

The fourth proportional to 74,951.99, 103,435.10 and 40,961.91 is: 56,528.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.99 : 103,435.10 = 40,961.91 : x
  2. Step 2: Convert to fraction form
    74,951.99/103,435.10 = 40,961.91/x
  3. Step 3: Cross multiply
    74,951.99x = 103,435.10 × 40,961.91
  4. Step 4: Simplify right side
    74,951.99x = 4,236,899,052.23
  5. Step 5: Solve for x
    x = 4,236,899,052.23/74,951.99
  6. Step 6: Final answer
    x = 56,528.18

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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.