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Finding the Fourth Proportional to 174,671.12, 261,787.44 and 74,713.76

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Solution

The fourth proportional to 174,671.12, 261,787.44 and 74,713.76 is: 111,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,671.12 : 261,787.44 = 74,713.76 : x
  2. Step 2: Convert to fraction form
    174,671.12/261,787.44 = 74,713.76/x
  3. Step 3: Cross multiply
    174,671.12x = 261,787.44 × 74,713.76
  4. Step 4: Simplify right side
    174,671.12x = 19,559,123,963.17
  5. Step 5: Solve for x
    x = 19,559,123,963.17/174,671.12
  6. Step 6: Final answer
    x = 111,976.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.