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Finding the Fourth Proportional to 229,680.97, 316,856.41 and 134,130.94

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Solution

The fourth proportional to 229,680.97, 316,856.41 and 134,130.94 is: 185,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,680.97 : 316,856.41 = 134,130.94 : x
  2. Step 2: Convert to fraction form
    229,680.97/316,856.41 = 134,130.94/x
  3. Step 3: Cross multiply
    229,680.97x = 316,856.41 × 134,130.94
  4. Step 4: Simplify right side
    229,680.97x = 42,500,246,990.86
  5. Step 5: Solve for x
    x = 42,500,246,990.86/229,680.97
  6. Step 6: Final answer
    x = 185,040.35

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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.