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Finding the Fourth Proportional to 91,264.51, 126,068.30 and 68,773.51

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Solution

The fourth proportional to 91,264.51, 126,068.30 and 68,773.51 is: 95,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,264.51 : 126,068.30 = 68,773.51 : x
  2. Step 2: Convert to fraction form
    91,264.51/126,068.30 = 68,773.51/x
  3. Step 3: Cross multiply
    91,264.51x = 126,068.30 × 68,773.51
  4. Step 4: Simplify right side
    91,264.51x = 8,670,159,490.73
  5. Step 5: Solve for x
    x = 8,670,159,490.73/91,264.51
  6. Step 6: Final answer
    x = 95,000.34

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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.