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Finding the Fourth Proportional to 60,656.76, 90,874.31 and 43,975.44

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Solution

The fourth proportional to 60,656.76, 90,874.31 and 43,975.44 is: 65,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,656.76 : 90,874.31 = 43,975.44 : x
  2. Step 2: Convert to fraction form
    60,656.76/90,874.31 = 43,975.44/x
  3. Step 3: Cross multiply
    60,656.76x = 90,874.31 × 43,975.44
  4. Step 4: Simplify right side
    60,656.76x = 3,996,237,547.07
  5. Step 5: Solve for x
    x = 3,996,237,547.07/60,656.76
  6. Step 6: Final answer
    x = 65,882.81

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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.