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Finding the Fourth Proportional to 100,609.32, 150,886.98 and 47,913.96

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Solution

The fourth proportional to 100,609.32, 150,886.98 and 47,913.96 is: 71,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609.32 : 150,886.98 = 47,913.96 : x
  2. Step 2: Convert to fraction form
    100,609.32/150,886.98 = 47,913.96/x
  3. Step 3: Cross multiply
    100,609.32x = 150,886.98 × 47,913.96
  4. Step 4: Simplify right side
    100,609.32x = 7,229,592,724.24
  5. Step 5: Solve for x
    x = 7,229,592,724.24/100,609.32
  6. Step 6: Final answer
    x = 71,858.08

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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.