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Finding the Fourth Proportional to 137,640.03, 206,547.72 and 62,767.63

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Solution

The fourth proportional to 137,640.03, 206,547.72 and 62,767.63 is: 94,191.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,640.03 : 206,547.72 = 62,767.63 : x
  2. Step 2: Convert to fraction form
    137,640.03/206,547.72 = 62,767.63/x
  3. Step 3: Cross multiply
    137,640.03x = 206,547.72 × 62,767.63
  4. Step 4: Simplify right side
    137,640.03x = 12,964,510,866.30
  5. Step 5: Solve for x
    x = 12,964,510,866.30/137,640.03
  6. Step 6: Final answer
    x = 94,191.43

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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.