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Finding the Fourth Proportional to 73,033.78, 100,787.34 and 42,836.98

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Solution

The fourth proportional to 73,033.78, 100,787.34 and 42,836.98 is: 59,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,033.78 : 100,787.34 = 42,836.98 : x
  2. Step 2: Convert to fraction form
    73,033.78/100,787.34 = 42,836.98/x
  3. Step 3: Cross multiply
    73,033.78x = 100,787.34 × 42,836.98
  4. Step 4: Simplify right side
    73,033.78x = 4,317,425,267.83
  5. Step 5: Solve for x
    x = 4,317,425,267.83/73,033.78
  6. Step 6: Final answer
    x = 59,115.46

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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.