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Finding the Fourth Proportional to 202,912.20, 304,368.30 and 124,180.20

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Solution

The fourth proportional to 202,912.20, 304,368.30 and 124,180.20 is: 186,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,912.20 : 304,368.30 = 124,180.20 : x
  2. Step 2: Convert to fraction form
    202,912.20/304,368.30 = 124,180.20/x
  3. Step 3: Cross multiply
    202,912.20x = 304,368.30 × 124,180.20
  4. Step 4: Simplify right side
    202,912.20x = 37,796,516,367.66
  5. Step 5: Solve for x
    x = 37,796,516,367.66/202,912.20
  6. Step 6: Final answer
    x = 186,270.30

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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.