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Finding the Fourth Proportional to 67,203.48, 92,724.98 and 56,489.08

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Solution

The fourth proportional to 67,203.48, 92,724.98 and 56,489.08 is: 77,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,203.48 : 92,724.98 = 56,489.08 : x
  2. Step 2: Convert to fraction form
    67,203.48/92,724.98 = 56,489.08/x
  3. Step 3: Cross multiply
    67,203.48x = 92,724.98 × 56,489.08
  4. Step 4: Simplify right side
    67,203.48x = 5,237,948,813.22
  5. Step 5: Solve for x
    x = 5,237,948,813.22/67,203.48
  6. Step 6: Final answer
    x = 77,941.63

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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.