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Finding the Fourth Proportional to 220,100.90, 330,151.35 and 53,888.90

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Solution

The fourth proportional to 220,100.90, 330,151.35 and 53,888.90 is: 80,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,100.90 : 330,151.35 = 53,888.90 : x
  2. Step 2: Convert to fraction form
    220,100.90/330,151.35 = 53,888.90/x
  3. Step 3: Cross multiply
    220,100.90x = 330,151.35 × 53,888.90
  4. Step 4: Simplify right side
    220,100.90x = 17,791,493,085.02
  5. Step 5: Solve for x
    x = 17,791,493,085.02/220,100.90
  6. Step 6: Final answer
    x = 80,833.35

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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.