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Finding the Fourth Proportional to 91,887.82, 126,818.92 and 56,098.44

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Solution

The fourth proportional to 91,887.82, 126,818.92 and 56,098.44 is: 77,424.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,887.82 : 126,818.92 = 56,098.44 : x
  2. Step 2: Convert to fraction form
    91,887.82/126,818.92 = 56,098.44/x
  3. Step 3: Cross multiply
    91,887.82x = 126,818.92 × 56,098.44
  4. Step 4: Simplify right side
    91,887.82x = 7,114,343,574.48
  5. Step 5: Solve for x
    x = 7,114,343,574.48/91,887.82
  6. Step 6: Final answer
    x = 77,424.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.