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Finding the Fourth Proportional to 132,168.96, 197,838.72 and 69,649.92

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Solution

The fourth proportional to 132,168.96, 197,838.72 and 69,649.92 is: 104,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,168.96 : 197,838.72 = 69,649.92 : x
  2. Step 2: Convert to fraction form
    132,168.96/197,838.72 = 69,649.92/x
  3. Step 3: Cross multiply
    132,168.96x = 197,838.72 × 69,649.92
  4. Step 4: Simplify right side
    132,168.96x = 13,779,451,020.90
  5. Step 5: Solve for x
    x = 13,779,451,020.90/132,168.96
  6. Step 6: Final answer
    x = 104,256.33

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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.