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Finding the Fourth Proportional to 137,555.28, 206,264.88 and 48,795.48

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Solution

The fourth proportional to 137,555.28, 206,264.88 and 48,795.48 is: 73,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,555.28 : 206,264.88 = 48,795.48 : x
  2. Step 2: Convert to fraction form
    137,555.28/206,264.88 = 48,795.48/x
  3. Step 3: Cross multiply
    137,555.28x = 206,264.88 × 48,795.48
  4. Step 4: Simplify right side
    137,555.28x = 10,064,793,826.74
  5. Step 5: Solve for x
    x = 10,064,793,826.74/137,555.28
  6. Step 6: Final answer
    x = 73,169.08

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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.