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Finding the Fourth Proportional to 475,172.52, 712,803.82 and 133,615.20

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Solution

The fourth proportional to 475,172.52, 712,803.82 and 133,615.20 is: 200,435.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,172.52 : 712,803.82 = 133,615.20 : x
  2. Step 2: Convert to fraction form
    475,172.52/712,803.82 = 133,615.20/x
  3. Step 3: Cross multiply
    475,172.52x = 712,803.82 × 133,615.20
  4. Step 4: Simplify right side
    475,172.52x = 95,241,424,970.06
  5. Step 5: Solve for x
    x = 95,241,424,970.06/475,172.52
  6. Step 6: Final answer
    x = 200,435.46

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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.