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Finding the Fourth Proportional to 389,503.61, 584,255.42 and 94,015.61

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Solution

The fourth proportional to 389,503.61, 584,255.42 and 94,015.61 is: 141,023.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,503.61 : 584,255.42 = 94,015.61 : x
  2. Step 2: Convert to fraction form
    389,503.61/584,255.42 = 94,015.61/x
  3. Step 3: Cross multiply
    389,503.61x = 584,255.42 × 94,015.61
  4. Step 4: Simplify right side
    389,503.61x = 54,929,129,707.11
  5. Step 5: Solve for x
    x = 54,929,129,707.11/389,503.61
  6. Step 6: Final answer
    x = 141,023.42

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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.