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Finding the Fourth Proportional to 216,740.30, 325,158.89 and 104,514.91

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Solution

The fourth proportional to 216,740.30, 325,158.89 and 104,514.91 is: 156,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,740.30 : 325,158.89 = 104,514.91 : x
  2. Step 2: Convert to fraction form
    216,740.30/325,158.89 = 104,514.91/x
  3. Step 3: Cross multiply
    216,740.30x = 325,158.89 × 104,514.91
  4. Step 4: Simplify right side
    216,740.30x = 33,983,951,156.01
  5. Step 5: Solve for x
    x = 33,983,951,156.01/216,740.30
  6. Step 6: Final answer
    x = 156,795.72

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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.