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Finding the Fourth Proportional to 229,309.62, 316,436.62 and 127,341.54

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Solution

The fourth proportional to 229,309.62, 316,436.62 and 127,341.54 is: 175,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,309.62 : 316,436.62 = 127,341.54 : x
  2. Step 2: Convert to fraction form
    229,309.62/316,436.62 = 127,341.54/x
  3. Step 3: Cross multiply
    229,309.62x = 316,436.62 × 127,341.54
  4. Step 4: Simplify right side
    229,309.62x = 40,295,524,921.01
  5. Step 5: Solve for x
    x = 40,295,524,921.01/229,309.62
  6. Step 6: Final answer
    x = 175,725.40

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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.