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Finding the Fourth Proportional to 229,412.00, 316,639.16 and 127,472.49

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Solution

The fourth proportional to 229,412.00, 316,639.16 and 127,472.49 is: 175,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,412.00 : 316,639.16 = 127,472.49 : x
  2. Step 2: Convert to fraction form
    229,412.00/316,639.16 = 127,472.49/x
  3. Step 3: Cross multiply
    229,412.00x = 316,639.16 × 127,472.49
  4. Step 4: Simplify right side
    229,412.00x = 40,362,781,519.35
  5. Step 5: Solve for x
    x = 40,362,781,519.35/229,412.00
  6. Step 6: Final answer
    x = 175,940.15

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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.