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Finding the Fourth Proportional to 354,536.08, 531,803.85 and 105,218.08

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Solution

The fourth proportional to 354,536.08, 531,803.85 and 105,218.08 is: 157,827.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,536.08 : 531,803.85 = 105,218.08 : x
  2. Step 2: Convert to fraction form
    354,536.08/531,803.85 = 105,218.08/x
  3. Step 3: Cross multiply
    354,536.08x = 531,803.85 × 105,218.08
  4. Step 4: Simplify right side
    354,536.08x = 55,955,380,033.61
  5. Step 5: Solve for x
    x = 55,955,380,033.61/354,536.08
  6. Step 6: Final answer
    x = 157,827.04

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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.