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Finding the Fourth Proportional to 235,299.76, 324,712.98 and 127,869.82

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Solution

The fourth proportional to 235,299.76, 324,712.98 and 127,869.82 is: 176,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,299.76 : 324,712.98 = 127,869.82 : x
  2. Step 2: Convert to fraction form
    235,299.76/324,712.98 = 127,869.82/x
  3. Step 3: Cross multiply
    235,299.76x = 324,712.98 × 127,869.82
  4. Step 4: Simplify right side
    235,299.76x = 41,520,990,304.26
  5. Step 5: Solve for x
    x = 41,520,990,304.26/235,299.76
  6. Step 6: Final answer
    x = 176,459.98

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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.