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Finding the Fourth Proportional to 89,322.94, 133,787.58 and 49,781.98

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Solution

The fourth proportional to 89,322.94, 133,787.58 and 49,781.98 is: 74,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,322.94 : 133,787.58 = 49,781.98 : x
  2. Step 2: Convert to fraction form
    89,322.94/133,787.58 = 49,781.98/x
  3. Step 3: Cross multiply
    89,322.94x = 133,787.58 × 49,781.98
  4. Step 4: Simplify right side
    89,322.94x = 6,660,210,631.81
  5. Step 5: Solve for x
    x = 6,660,210,631.81/89,322.94
  6. Step 6: Final answer
    x = 74,563.27

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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.