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Finding the Fourth Proportional to 220,153.60, 330,011.70 and 101,618.20

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Solution

The fourth proportional to 220,153.60, 330,011.70 and 101,618.20 is: 152,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,153.60 : 330,011.70 = 101,618.20 : x
  2. Step 2: Convert to fraction form
    220,153.60/330,011.70 = 101,618.20/x
  3. Step 3: Cross multiply
    220,153.60x = 330,011.70 × 101,618.20
  4. Step 4: Simplify right side
    220,153.60x = 33,535,194,932.94
  5. Step 5: Solve for x
    x = 33,535,194,932.94/220,153.60
  6. Step 6: Final answer
    x = 152,326.35

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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.