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Finding the Fourth Proportional to 229,353.51, 316,497.11 and 127,385.55

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Solution

The fourth proportional to 229,353.51, 316,497.11 and 127,385.55 is: 175,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,353.51 : 316,497.11 = 127,385.55 : x
  2. Step 2: Convert to fraction form
    229,353.51/316,497.11 = 127,385.55/x
  3. Step 3: Cross multiply
    229,353.51x = 316,497.11 × 127,385.55
  4. Step 4: Simplify right side
    229,353.51x = 40,317,157,793.83
  5. Step 5: Solve for x
    x = 40,317,157,793.83/229,353.51
  6. Step 6: Final answer
    x = 175,786.09

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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.