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Finding the Fourth Proportional to 422,063.35, 632,707.07 and 152,125.43

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Solution

The fourth proportional to 422,063.35, 632,707.07 and 152,125.43 is: 228,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,063.35 : 632,707.07 = 152,125.43 : x
  2. Step 2: Convert to fraction form
    422,063.35/632,707.07 = 152,125.43/x
  3. Step 3: Cross multiply
    422,063.35x = 632,707.07 × 152,125.43
  4. Step 4: Simplify right side
    422,063.35x = 96,250,835,908.93
  5. Step 5: Solve for x
    x = 96,250,835,908.93/422,063.35
  6. Step 6: Final answer
    x = 228,048.32

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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.