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Finding the Fourth Proportional to 231,587.88, 319,530.53 and 133,446.98

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Solution

The fourth proportional to 231,587.88, 319,530.53 and 133,446.98 is: 184,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,587.88 : 319,530.53 = 133,446.98 : x
  2. Step 2: Convert to fraction form
    231,587.88/319,530.53 = 133,446.98/x
  3. Step 3: Cross multiply
    231,587.88x = 319,530.53 × 133,446.98
  4. Step 4: Simplify right side
    231,587.88x = 42,640,385,117.06
  5. Step 5: Solve for x
    x = 42,640,385,117.06/231,587.88
  6. Step 6: Final answer
    x = 184,121.83

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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.