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Finding the Fourth Proportional to 348,581.80, 522,861.90 and 99,263.80

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Solution

The fourth proportional to 348,581.80, 522,861.90 and 99,263.80 is: 148,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,581.80 : 522,861.90 = 99,263.80 : x
  2. Step 2: Convert to fraction form
    348,581.80/522,861.90 = 99,263.80/x
  3. Step 3: Cross multiply
    348,581.80x = 522,861.90 × 99,263.80
  4. Step 4: Simplify right side
    348,581.80x = 51,901,259,069.22
  5. Step 5: Solve for x
    x = 51,901,259,069.22/348,581.80
  6. Step 6: Final answer
    x = 148,892.62

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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.