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Finding the Fourth Proportional to 476,996.85, 715,498.92 and 140,043.33

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Solution

The fourth proportional to 476,996.85, 715,498.92 and 140,043.33 is: 210,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,996.85 : 715,498.92 = 140,043.33 : x
  2. Step 2: Convert to fraction form
    476,996.85/715,498.92 = 140,043.33/x
  3. Step 3: Cross multiply
    476,996.85x = 715,498.92 × 140,043.33
  4. Step 4: Simplify right side
    476,996.85x = 100,200,851,368.20
  5. Step 5: Solve for x
    x = 100,200,851,368.20/476,996.85
  6. Step 6: Final answer
    x = 210,066.07

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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.