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Finding the Fourth Proportional to 67,463.52, 93,109.68 and 65,398.56

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Solution

The fourth proportional to 67,463.52, 93,109.68 and 65,398.56 is: 90,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,463.52 : 93,109.68 = 65,398.56 : x
  2. Step 2: Convert to fraction form
    67,463.52/93,109.68 = 65,398.56/x
  3. Step 3: Cross multiply
    67,463.52x = 93,109.68 × 65,398.56
  4. Step 4: Simplify right side
    67,463.52x = 6,089,238,994.06
  5. Step 5: Solve for x
    x = 6,089,238,994.06/67,463.52
  6. Step 6: Final answer
    x = 90,259.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.