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Finding the Fourth Proportional to 473,364.36, 709,631.82 and 178,083.72

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Solution

The fourth proportional to 473,364.36, 709,631.82 and 178,083.72 is: 266,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,364.36 : 709,631.82 = 178,083.72 : x
  2. Step 2: Convert to fraction form
    473,364.36/709,631.82 = 178,083.72/x
  3. Step 3: Cross multiply
    473,364.36x = 709,631.82 × 178,083.72
  4. Step 4: Simplify right side
    473,364.36x = 126,373,874,335.97
  5. Step 5: Solve for x
    x = 126,373,874,335.97/473,364.36
  6. Step 6: Final answer
    x = 266,969.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.