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Finding the Fourth Proportional to 229,340.65, 316,500.61 and 127,366.57

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Solution

The fourth proportional to 229,340.65, 316,500.61 and 127,366.57 is: 175,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,340.65 : 316,500.61 = 127,366.57 : x
  2. Step 2: Convert to fraction form
    229,340.65/316,500.61 = 127,366.57/x
  3. Step 3: Cross multiply
    229,340.65x = 316,500.61 × 127,366.57
  4. Step 4: Simplify right side
    229,340.65x = 40,311,595,197.69
  5. Step 5: Solve for x
    x = 40,311,595,197.69/229,340.65
  6. Step 6: Final answer
    x = 175,771.69

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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.