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Finding the Fourth Proportional to 183,387.48, 275,057.82 and 70,990.79

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Solution

The fourth proportional to 183,387.48, 275,057.82 and 70,990.79 is: 106,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,387.48 : 275,057.82 = 70,990.79 : x
  2. Step 2: Convert to fraction form
    183,387.48/275,057.82 = 70,990.79/x
  3. Step 3: Cross multiply
    183,387.48x = 275,057.82 × 70,990.79
  4. Step 4: Simplify right side
    183,387.48x = 19,526,570,562.19
  5. Step 5: Solve for x
    x = 19,526,570,562.19/183,387.48
  6. Step 6: Final answer
    x = 106,477.12

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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.