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Finding the Fourth Proportional to 225,243.60, 310,786.56 and 134,586

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Solution

The fourth proportional to 225,243.60, 310,786.56 and 134,586 is: 185,699.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,243.60 : 310,786.56 = 134,586 : x
  2. Step 2: Convert to fraction form
    225,243.60/310,786.56 = 134,586/x
  3. Step 3: Cross multiply
    225,243.60x = 310,786.56 × 134,586
  4. Step 4: Simplify right side
    225,243.60x = 41,827,519,964.16
  5. Step 5: Solve for x
    x = 41,827,519,964.16/225,243.60
  6. Step 6: Final answer
    x = 185,699.04

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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.