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Finding the Fourth Proportional to 389,613.60, 583,959.60 and 164,973.60

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Solution

The fourth proportional to 389,613.60, 583,959.60 and 164,973.60 is: 247,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,613.60 : 583,959.60 = 164,973.60 : x
  2. Step 2: Convert to fraction form
    389,613.60/583,959.60 = 164,973.60/x
  3. Step 3: Cross multiply
    389,613.60x = 583,959.60 × 164,973.60
  4. Step 4: Simplify right side
    389,613.60x = 96,337,917,466.56
  5. Step 5: Solve for x
    x = 96,337,917,466.56/389,613.60
  6. Step 6: Final answer
    x = 247,265.28

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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.