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Finding the Fourth Proportional to 68,657.10, 103,001.15 and 37,066.47

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Solution

The fourth proportional to 68,657.10, 103,001.15 and 37,066.47 is: 55,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,657.10 : 103,001.15 = 37,066.47 : x
  2. Step 2: Convert to fraction form
    68,657.10/103,001.15 = 37,066.47/x
  3. Step 3: Cross multiply
    68,657.10x = 103,001.15 × 37,066.47
  4. Step 4: Simplify right side
    68,657.10x = 3,817,889,036.44
  5. Step 5: Solve for x
    x = 3,817,889,036.44/68,657.10
  6. Step 6: Final answer
    x = 55,608.07

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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.