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Finding the Fourth Proportional to 229,426.80, 316,659.62 and 127,487.28

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Solution

The fourth proportional to 229,426.80, 316,659.62 and 127,487.28 is: 175,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,426.80 : 316,659.62 = 127,487.28 : x
  2. Step 2: Convert to fraction form
    229,426.80/316,659.62 = 127,487.28/x
  3. Step 3: Cross multiply
    229,426.80x = 316,659.62 × 127,487.28
  4. Step 4: Simplify right side
    229,426.80x = 40,370,073,639.63
  5. Step 5: Solve for x
    x = 40,370,073,639.63/229,426.80
  6. Step 6: Final answer
    x = 175,960.58

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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.