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Finding the Fourth Proportional to 452,996.64, 679,495.04 and 133,148.48

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Solution

The fourth proportional to 452,996.64, 679,495.04 and 133,148.48 is: 199,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,996.64 : 679,495.04 = 133,148.48 : x
  2. Step 2: Convert to fraction form
    452,996.64/679,495.04 = 133,148.48/x
  3. Step 3: Cross multiply
    452,996.64x = 679,495.04 × 133,148.48
  4. Step 4: Simplify right side
    452,996.64x = 90,473,731,743.54
  5. Step 5: Solve for x
    x = 90,473,731,743.54/452,996.64
  6. Step 6: Final answer
    x = 199,722.74

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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.