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Finding the Fourth Proportional to 354,552.18, 531,832.89 and 117,894.88

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Solution

The fourth proportional to 354,552.18, 531,832.89 and 117,894.88 is: 176,843.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,552.18 : 531,832.89 = 117,894.88 : x
  2. Step 2: Convert to fraction form
    354,552.18/531,832.89 = 117,894.88/x
  3. Step 3: Cross multiply
    354,552.18x = 531,832.89 × 117,894.88
  4. Step 4: Simplify right side
    354,552.18x = 62,700,374,746.60
  5. Step 5: Solve for x
    x = 62,700,374,746.60/354,552.18
  6. Step 6: Final answer
    x = 176,843.86

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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.