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Finding the Fourth Proportional to 500,390.88, 750,664.10 and 168,044.64

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Solution

The fourth proportional to 500,390.88, 750,664.10 and 168,044.64 is: 252,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,390.88 : 750,664.10 = 168,044.64 : x
  2. Step 2: Convert to fraction form
    500,390.88/750,664.10 = 168,044.64/x
  3. Step 3: Cross multiply
    500,390.88x = 750,664.10 × 168,044.64
  4. Step 4: Simplify right side
    500,390.88x = 126,145,078,445.42
  5. Step 5: Solve for x
    x = 126,145,078,445.42/500,390.88
  6. Step 6: Final answer
    x = 252,093.08

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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.