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Finding the Fourth Proportional to 473,172.72, 709,652.97 and 136,138.20

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Solution

The fourth proportional to 473,172.72, 709,652.97 and 136,138.20 is: 204,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,172.72 : 709,652.97 = 136,138.20 : x
  2. Step 2: Convert to fraction form
    473,172.72/709,652.97 = 136,138.20/x
  3. Step 3: Cross multiply
    473,172.72x = 709,652.97 × 136,138.20
  4. Step 4: Simplify right side
    473,172.72x = 96,610,877,960.45
  5. Step 5: Solve for x
    x = 96,610,877,960.45/473,172.72
  6. Step 6: Final answer
    x = 204,176.77

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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.