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Finding the Fourth Proportional to 193,383.84, 266,873.76 and 108,506.64

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Solution

The fourth proportional to 193,383.84, 266,873.76 and 108,506.64 is: 149,741.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,383.84 : 266,873.76 = 108,506.64 : x
  2. Step 2: Convert to fraction form
    193,383.84/266,873.76 = 108,506.64/x
  3. Step 3: Cross multiply
    193,383.84x = 266,873.76 × 108,506.64
  4. Step 4: Simplify right side
    193,383.84x = 28,957,575,001.77
  5. Step 5: Solve for x
    x = 28,957,575,001.77/193,383.84
  6. Step 6: Final answer
    x = 149,741.44

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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.