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Finding the Fourth Proportional to 99,222, 136,926.48 and 54,510

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Solution

The fourth proportional to 99,222, 136,926.48 and 54,510 is: 75,223.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,222 : 136,926.48 = 54,510 : x
  2. Step 2: Convert to fraction form
    99,222/136,926.48 = 54,510/x
  3. Step 3: Cross multiply
    99,222x = 136,926.48 × 54,510
  4. Step 4: Simplify right side
    99,222x = 7,463,862,424.80
  5. Step 5: Solve for x
    x = 7,463,862,424.80/99,222
  6. Step 6: Final answer
    x = 75,223.87

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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.