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Finding the Fourth Proportional to 229,694.50, 316,894.44 and 139,017.52

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Solution

The fourth proportional to 229,694.50, 316,894.44 and 139,017.52 is: 191,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,694.50 : 316,894.44 = 139,017.52 : x
  2. Step 2: Convert to fraction form
    229,694.50/316,894.44 = 139,017.52/x
  3. Step 3: Cross multiply
    229,694.50x = 316,894.44 × 139,017.52
  4. Step 4: Simplify right side
    229,694.50x = 44,053,879,150.59
  5. Step 5: Solve for x
    x = 44,053,879,150.59/229,694.50
  6. Step 6: Final answer
    x = 191,793.36

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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.