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Finding the Fourth Proportional to 82,917.17, 124,400.17 and 26,756.22

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Solution

The fourth proportional to 82,917.17, 124,400.17 and 26,756.22 is: 40,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,917.17 : 124,400.17 = 26,756.22 : x
  2. Step 2: Convert to fraction form
    82,917.17/124,400.17 = 26,756.22/x
  3. Step 3: Cross multiply
    82,917.17x = 124,400.17 × 26,756.22
  4. Step 4: Simplify right side
    82,917.17x = 3,328,478,816.50
  5. Step 5: Solve for x
    x = 3,328,478,816.50/82,917.17
  6. Step 6: Final answer
    x = 40,142.22

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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.