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Finding the Fourth Proportional to 229,690.55, 316,973.85 and 127,725.32

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Solution

The fourth proportional to 229,690.55, 316,973.85 and 127,725.32 is: 176,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,690.55 : 316,973.85 = 127,725.32 : x
  2. Step 2: Convert to fraction form
    229,690.55/316,973.85 = 127,725.32/x
  3. Step 3: Cross multiply
    229,690.55x = 316,973.85 × 127,725.32
  4. Step 4: Simplify right side
    229,690.55x = 40,485,586,422.88
  5. Step 5: Solve for x
    x = 40,485,586,422.88/229,690.55
  6. Step 6: Final answer
    x = 176,261.44

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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.