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Finding the Fourth Proportional to 74,790.66, 112,108.98 and 32,662.86

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Solution

The fourth proportional to 74,790.66, 112,108.98 and 32,662.86 is: 48,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,790.66 : 112,108.98 = 32,662.86 : x
  2. Step 2: Convert to fraction form
    74,790.66/112,108.98 = 32,662.86/x
  3. Step 3: Cross multiply
    74,790.66x = 112,108.98 × 32,662.86
  4. Step 4: Simplify right side
    74,790.66x = 3,661,799,918.48
  5. Step 5: Solve for x
    x = 3,661,799,918.48/74,790.66
  6. Step 6: Final answer
    x = 48,960.66

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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.