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Finding the Fourth Proportional to 79,820.94, 119,731.32 and 23,661.48

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Solution

The fourth proportional to 79,820.94, 119,731.32 and 23,661.48 is: 35,492.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,820.94 : 119,731.32 = 23,661.48 : x
  2. Step 2: Convert to fraction form
    79,820.94/119,731.32 = 23,661.48/x
  3. Step 3: Cross multiply
    79,820.94x = 119,731.32 × 23,661.48
  4. Step 4: Simplify right side
    79,820.94x = 2,833,020,233.55
  5. Step 5: Solve for x
    x = 2,833,020,233.55/79,820.94
  6. Step 6: Final answer
    x = 35,492.19

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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.