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Finding the Fourth Proportional to 202,218.50, 279,061.53 and 112,794.50

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Solution

The fourth proportional to 202,218.50, 279,061.53 and 112,794.50 is: 155,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,218.50 : 279,061.53 = 112,794.50 : x
  2. Step 2: Convert to fraction form
    202,218.50/279,061.53 = 112,794.50/x
  3. Step 3: Cross multiply
    202,218.50x = 279,061.53 × 112,794.50
  4. Step 4: Simplify right side
    202,218.50x = 31,476,605,745.59
  5. Step 5: Solve for x
    x = 31,476,605,745.59/202,218.50
  6. Step 6: Final answer
    x = 155,656.41

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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.