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Finding the Fourth Proportional to 341,955.12, 512,947.08 and 92,636.88

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Solution

The fourth proportional to 341,955.12, 512,947.08 and 92,636.88 is: 138,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,955.12 : 512,947.08 = 92,636.88 : x
  2. Step 2: Convert to fraction form
    341,955.12/512,947.08 = 92,636.88/x
  3. Step 3: Cross multiply
    341,955.12x = 512,947.08 × 92,636.88
  4. Step 4: Simplify right side
    341,955.12x = 47,517,817,096.31
  5. Step 5: Solve for x
    x = 47,517,817,096.31/341,955.12
  6. Step 6: Final answer
    x = 138,959.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.