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Finding the Fourth Proportional to 220,205.50, 303,883.90 and 119,603.50

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Solution

The fourth proportional to 220,205.50, 303,883.90 and 119,603.50 is: 165,053.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,205.50 : 303,883.90 = 119,603.50 : x
  2. Step 2: Convert to fraction form
    220,205.50/303,883.90 = 119,603.50/x
  3. Step 3: Cross multiply
    220,205.50x = 303,883.90 × 119,603.50
  4. Step 4: Simplify right side
    220,205.50x = 36,345,577,435.63
  5. Step 5: Solve for x
    x = 36,345,577,435.63/220,205.50
  6. Step 6: Final answer
    x = 165,053.00

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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.