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Finding the Fourth Proportional to 60,234.48, 90,356.58 and 18,681.48

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Solution

The fourth proportional to 60,234.48, 90,356.58 and 18,681.48 is: 28,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,234.48 : 90,356.58 = 18,681.48 : x
  2. Step 2: Convert to fraction form
    60,234.48/90,356.58 = 18,681.48/x
  3. Step 3: Cross multiply
    60,234.48x = 90,356.58 × 18,681.48
  4. Step 4: Simplify right side
    60,234.48x = 1,687,994,642.14
  5. Step 5: Solve for x
    x = 1,687,994,642.14/60,234.48
  6. Step 6: Final answer
    x = 28,023.73

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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.