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Finding the Fourth Proportional to 84,655.63, 126,872.02 and 47,233.32

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Solution

The fourth proportional to 84,655.63, 126,872.02 and 47,233.32 is: 70,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,655.63 : 126,872.02 = 47,233.32 : x
  2. Step 2: Convert to fraction form
    84,655.63/126,872.02 = 47,233.32/x
  3. Step 3: Cross multiply
    84,655.63x = 126,872.02 × 47,233.32
  4. Step 4: Simplify right side
    84,655.63x = 5,992,586,719.71
  5. Step 5: Solve for x
    x = 5,992,586,719.71/84,655.63
  6. Step 6: Final answer
    x = 70,787.81

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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.