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Finding the Fourth Proportional to 202,059.90, 303,061.05 and 68,946.30

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Solution

The fourth proportional to 202,059.90, 303,061.05 and 68,946.30 is: 103,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,059.90 : 303,061.05 = 68,946.30 : x
  2. Step 2: Convert to fraction form
    202,059.90/303,061.05 = 68,946.30/x
  3. Step 3: Cross multiply
    202,059.90x = 303,061.05 × 68,946.30
  4. Step 4: Simplify right side
    202,059.90x = 20,894,938,071.62
  5. Step 5: Solve for x
    x = 20,894,938,071.62/202,059.90
  6. Step 6: Final answer
    x = 103,409.62

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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.