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Finding the Fourth Proportional to 202,212.90, 303,319.35 and 194,436.90

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Solution

The fourth proportional to 202,212.90, 303,319.35 and 194,436.90 is: 291,655.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,212.90 : 303,319.35 = 194,436.90 : x
  2. Step 2: Convert to fraction form
    202,212.90/303,319.35 = 194,436.90/x
  3. Step 3: Cross multiply
    202,212.90x = 303,319.35 × 194,436.90
  4. Step 4: Simplify right side
    202,212.90x = 58,976,474,124.02
  5. Step 5: Solve for x
    x = 58,976,474,124.02/202,212.90
  6. Step 6: Final answer
    x = 291,655.35

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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.