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Finding the Fourth Proportional to 225,973.72, 311,847.06 and 124,009.30

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Solution

The fourth proportional to 225,973.72, 311,847.06 and 124,009.30 is: 171,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,973.72 : 311,847.06 = 124,009.30 : x
  2. Step 2: Convert to fraction form
    225,973.72/311,847.06 = 124,009.30/x
  3. Step 3: Cross multiply
    225,973.72x = 311,847.06 × 124,009.30
  4. Step 4: Simplify right side
    225,973.72x = 38,671,935,617.66
  5. Step 5: Solve for x
    x = 38,671,935,617.66/225,973.72
  6. Step 6: Final answer
    x = 171,134.66

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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.