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Finding the Fourth Proportional to 99,111, 148,665.17 and 24,231.79

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Solution

The fourth proportional to 99,111, 148,665.17 and 24,231.79 is: 36,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,111 : 148,665.17 = 24,231.79 : x
  2. Step 2: Convert to fraction form
    99,111/148,665.17 = 24,231.79/x
  3. Step 3: Cross multiply
    99,111x = 148,665.17 × 24,231.79
  4. Step 4: Simplify right side
    99,111x = 3,602,423,179.75
  5. Step 5: Solve for x
    x = 3,602,423,179.75/99,111
  6. Step 6: Final answer
    x = 36,347.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.