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Finding the Fourth Proportional to 70,787.21, 106,246.44 and 35,751.47

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Solution

The fourth proportional to 70,787.21, 106,246.44 and 35,751.47 is: 53,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.21 : 106,246.44 = 35,751.47 : x
  2. Step 2: Convert to fraction form
    70,787.21/106,246.44 = 35,751.47/x
  3. Step 3: Cross multiply
    70,787.21x = 106,246.44 × 35,751.47
  4. Step 4: Simplify right side
    70,787.21x = 3,798,465,881.03
  5. Step 5: Solve for x
    x = 3,798,465,881.03/70,787.21
  6. Step 6: Final answer
    x = 53,660.35

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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.