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Finding the Fourth Proportional to 229,600.68, 316,874.57 and 139,006.56

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Solution

The fourth proportional to 229,600.68, 316,874.57 and 139,006.56 is: 191,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,600.68 : 316,874.57 = 139,006.56 : x
  2. Step 2: Convert to fraction form
    229,600.68/316,874.57 = 139,006.56/x
  3. Step 3: Cross multiply
    229,600.68x = 316,874.57 × 139,006.56
  4. Step 4: Simplify right side
    229,600.68x = 44,047,644,420.43
  5. Step 5: Solve for x
    x = 44,047,644,420.43/229,600.68
  6. Step 6: Final answer
    x = 191,844.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.