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Finding the Fourth Proportional to 202,257.60, 303,362.10 and 83,916.60

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Solution

The fourth proportional to 202,257.60, 303,362.10 and 83,916.60 is: 125,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,257.60 : 303,362.10 = 83,916.60 : x
  2. Step 2: Convert to fraction form
    202,257.60/303,362.10 = 83,916.60/x
  3. Step 3: Cross multiply
    202,257.60x = 303,362.10 × 83,916.60
  4. Step 4: Simplify right side
    202,257.60x = 25,457,116,000.86
  5. Step 5: Solve for x
    x = 25,457,116,000.86/202,257.60
  6. Step 6: Final answer
    x = 125,864.82

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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.