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Finding the Fourth Proportional to 429,337.02, 644,300.79 and 148,854.27

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Solution

The fourth proportional to 429,337.02, 644,300.79 and 148,854.27 is: 223,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,337.02 : 644,300.79 = 148,854.27 : x
  2. Step 2: Convert to fraction form
    429,337.02/644,300.79 = 148,854.27/x
  3. Step 3: Cross multiply
    429,337.02x = 644,300.79 × 148,854.27
  4. Step 4: Simplify right side
    429,337.02x = 95,906,923,755.87
  5. Step 5: Solve for x
    x = 95,906,923,755.87/429,337.02
  6. Step 6: Final answer
    x = 223,383.77

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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.