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Finding the Fourth Proportional to 291,069.17, 436,084.31 and 157,864.46

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Solution

The fourth proportional to 291,069.17, 436,084.31 and 157,864.46 is: 236,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,069.17 : 436,084.31 = 157,864.46 : x
  2. Step 2: Convert to fraction form
    291,069.17/436,084.31 = 157,864.46/x
  3. Step 3: Cross multiply
    291,069.17x = 436,084.31 × 157,864.46
  4. Step 4: Simplify right side
    291,069.17x = 68,842,211,142.88
  5. Step 5: Solve for x
    x = 68,842,211,142.88/291,069.17
  6. Step 6: Final answer
    x = 236,514.96

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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.