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Finding the Fourth Proportional to 60,447.20, 90,670.80 and 41,784.80

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Solution

The fourth proportional to 60,447.20, 90,670.80 and 41,784.80 is: 62,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,447.20 : 90,670.80 = 41,784.80 : x
  2. Step 2: Convert to fraction form
    60,447.20/90,670.80 = 41,784.80/x
  3. Step 3: Cross multiply
    60,447.20x = 90,670.80 × 41,784.80
  4. Step 4: Simplify right side
    60,447.20x = 3,788,661,243.84
  5. Step 5: Solve for x
    x = 3,788,661,243.84/60,447.20
  6. Step 6: Final answer
    x = 62,677.20

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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.