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Finding the Fourth Proportional to 445,583.76, 668,514.36 and 146,066.64

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Solution

The fourth proportional to 445,583.76, 668,514.36 and 146,066.64 is: 219,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,583.76 : 668,514.36 = 146,066.64 : x
  2. Step 2: Convert to fraction form
    445,583.76/668,514.36 = 146,066.64/x
  3. Step 3: Cross multiply
    445,583.76x = 668,514.36 × 146,066.64
  4. Step 4: Simplify right side
    445,583.76x = 97,647,646,356.95
  5. Step 5: Solve for x
    x = 97,647,646,356.95/445,583.76
  6. Step 6: Final answer
    x = 219,145.43

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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.