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Finding the Fourth Proportional to 202,110.40, 303,192.60 and 68,957.20

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Solution

The fourth proportional to 202,110.40, 303,192.60 and 68,957.20 is: 103,445.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,110.40 : 303,192.60 = 68,957.20 : x
  2. Step 2: Convert to fraction form
    202,110.40/303,192.60 = 68,957.20/x
  3. Step 3: Cross multiply
    202,110.40x = 303,192.60 × 68,957.20
  4. Step 4: Simplify right side
    202,110.40x = 20,907,312,756.72
  5. Step 5: Solve for x
    x = 20,907,312,756.72/202,110.40
  6. Step 6: Final answer
    x = 103,445.01

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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.