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Finding the Fourth Proportional to 70,787.87, 106,200.32 and 26,415.01

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Solution

The fourth proportional to 70,787.87, 106,200.32 and 26,415.01 is: 39,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.87 : 106,200.32 = 26,415.01 : x
  2. Step 2: Convert to fraction form
    70,787.87/106,200.32 = 26,415.01/x
  3. Step 3: Cross multiply
    70,787.87x = 106,200.32 × 26,415.01
  4. Step 4: Simplify right side
    70,787.87x = 2,805,282,117.23
  5. Step 5: Solve for x
    x = 2,805,282,117.23/70,787.87
  6. Step 6: Final answer
    x = 39,629.42

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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.