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Finding the Fourth Proportional to 216,607.86, 324,714.96 and 98,214.62

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Solution

The fourth proportional to 216,607.86, 324,714.96 and 98,214.62 is: 147,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,607.86 : 324,714.96 = 98,214.62 : x
  2. Step 2: Convert to fraction form
    216,607.86/324,714.96 = 98,214.62/x
  3. Step 3: Cross multiply
    216,607.86x = 324,714.96 × 98,214.62
  4. Step 4: Simplify right side
    216,607.86x = 31,891,756,404.72
  5. Step 5: Solve for x
    x = 31,891,756,404.72/216,607.86
  6. Step 6: Final answer
    x = 147,232.68

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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.