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Finding the Fourth Proportional to 225,357.67, 310,972.26 and 134,695.45

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Solution

The fourth proportional to 225,357.67, 310,972.26 and 134,695.45 is: 185,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,357.67 : 310,972.26 = 134,695.45 : x
  2. Step 2: Convert to fraction form
    225,357.67/310,972.26 = 134,695.45/x
  3. Step 3: Cross multiply
    225,357.67x = 310,972.26 × 134,695.45
  4. Step 4: Simplify right side
    225,357.67x = 41,886,548,498.22
  5. Step 5: Solve for x
    x = 41,886,548,498.22/225,357.67
  6. Step 6: Final answer
    x = 185,866.98

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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.