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Finding the Fourth Proportional to 389,503.68, 584,255.52 and 94,015.68

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Solution

The fourth proportional to 389,503.68, 584,255.52 and 94,015.68 is: 141,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,503.68 : 584,255.52 = 94,015.68 : x
  2. Step 2: Convert to fraction form
    389,503.68/584,255.52 = 94,015.68/x
  3. Step 3: Cross multiply
    389,503.68x = 584,255.52 × 94,015.68
  4. Step 4: Simplify right side
    389,503.68x = 54,929,180,006.55
  5. Step 5: Solve for x
    x = 54,929,180,006.55/389,503.68
  6. Step 6: Final answer
    x = 141,023.52

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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.