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Finding the Fourth Proportional to 229,168.22, 316,255.56 and 127,200.29

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Solution

The fourth proportional to 229,168.22, 316,255.56 and 127,200.29 is: 175,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,168.22 : 316,255.56 = 127,200.29 : x
  2. Step 2: Convert to fraction form
    229,168.22/316,255.56 = 127,200.29/x
  3. Step 3: Cross multiply
    229,168.22x = 316,255.56 × 127,200.29
  4. Step 4: Simplify right side
    229,168.22x = 40,227,798,946.11
  5. Step 5: Solve for x
    x = 40,227,798,946.11/229,168.22
  6. Step 6: Final answer
    x = 175,538.30

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1.5x scale

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.