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Finding the Fourth Proportional to 220,661.50, 304,512.88 and 120,060.22

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Solution

The fourth proportional to 220,661.50, 304,512.88 and 120,060.22 is: 165,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,661.50 : 304,512.88 = 120,060.22 : x
  2. Step 2: Convert to fraction form
    220,661.50/304,512.88 = 120,060.22/x
  3. Step 3: Cross multiply
    220,661.50x = 304,512.88 × 120,060.22
  4. Step 4: Simplify right side
    220,661.50x = 36,559,883,365.63
  5. Step 5: Solve for x
    x = 36,559,883,365.63/220,661.50
  6. Step 6: Final answer
    x = 165,683.11

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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.