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Finding the Fourth Proportional to 202,391.07, 303,531.15 and 76,021.55

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Solution

The fourth proportional to 202,391.07, 303,531.15 and 76,021.55 is: 114,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,391.07 : 303,531.15 = 76,021.55 : x
  2. Step 2: Convert to fraction form
    202,391.07/303,531.15 = 76,021.55/x
  3. Step 3: Cross multiply
    202,391.07x = 303,531.15 × 76,021.55
  4. Step 4: Simplify right side
    202,391.07x = 23,074,908,496.28
  5. Step 5: Solve for x
    x = 23,074,908,496.28/202,391.07
  6. Step 6: Final answer
    x = 114,011.50

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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.