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Finding the Fourth Proportional to 225,346.30, 310,977.96 and 124,744.30

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Solution

The fourth proportional to 225,346.30, 310,977.96 and 124,744.30 is: 172,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,346.30 : 310,977.96 = 124,744.30 : x
  2. Step 2: Convert to fraction form
    225,346.30/310,977.96 = 124,744.30/x
  3. Step 3: Cross multiply
    225,346.30x = 310,977.96 × 124,744.30
  4. Step 4: Simplify right side
    225,346.30x = 38,792,727,935.63
  5. Step 5: Solve for x
    x = 38,792,727,935.63/225,346.30
  6. Step 6: Final answer
    x = 172,147.17

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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.