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Finding the Fourth Proportional to 77,161.55, 115,753.08 and 23,857.88

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Solution

The fourth proportional to 77,161.55, 115,753.08 and 23,857.88 is: 35,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,161.55 : 115,753.08 = 23,857.88 : x
  2. Step 2: Convert to fraction form
    77,161.55/115,753.08 = 23,857.88/x
  3. Step 3: Cross multiply
    77,161.55x = 115,753.08 × 23,857.88
  4. Step 4: Simplify right side
    77,161.55x = 2,761,622,513.51
  5. Step 5: Solve for x
    x = 2,761,622,513.51/77,161.55
  6. Step 6: Final answer
    x = 35,790.14

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1.5x scale

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.