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Finding the Fourth Proportional to 156,596.25, 216,103.40 and 84,976.26

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Solution

The fourth proportional to 156,596.25, 216,103.40 and 84,976.26 is: 117,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,596.25 : 216,103.40 = 84,976.26 : x
  2. Step 2: Convert to fraction form
    156,596.25/216,103.40 = 84,976.26/x
  3. Step 3: Cross multiply
    156,596.25x = 216,103.40 × 84,976.26
  4. Step 4: Simplify right side
    156,596.25x = 18,363,657,788.68
  5. Step 5: Solve for x
    x = 18,363,657,788.68/156,596.25
  6. Step 6: Final answer
    x = 117,267.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.