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Finding the Fourth Proportional to 178,524, 246,363.12 and 99,036

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Solution

The fourth proportional to 178,524, 246,363.12 and 99,036 is: 136,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,524 : 246,363.12 = 99,036 : x
  2. Step 2: Convert to fraction form
    178,524/246,363.12 = 99,036/x
  3. Step 3: Cross multiply
    178,524x = 246,363.12 × 99,036
  4. Step 4: Simplify right side
    178,524x = 24,398,817,952.32
  5. Step 5: Solve for x
    x = 24,398,817,952.32/178,524
  6. Step 6: Final answer
    x = 136,669.68

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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.