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Finding the Fourth Proportional to 220,108.60, 330,162.90 and 185,116.60

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Solution

The fourth proportional to 220,108.60, 330,162.90 and 185,116.60 is: 277,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,108.60 : 330,162.90 = 185,116.60 : x
  2. Step 2: Convert to fraction form
    220,108.60/330,162.90 = 185,116.60/x
  3. Step 3: Cross multiply
    220,108.60x = 330,162.90 × 185,116.60
  4. Step 4: Simplify right side
    220,108.60x = 61,118,633,494.14
  5. Step 5: Solve for x
    x = 61,118,633,494.14/220,108.60
  6. Step 6: Final answer
    x = 277,674.90

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1.5x scale

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.