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Finding the Fourth Proportional to 543,099.06, 814,919.94 and 243,792.72

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Solution

The fourth proportional to 543,099.06, 814,919.94 and 243,792.72 is: 365,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,099.06 : 814,919.94 = 243,792.72 : x
  2. Step 2: Convert to fraction form
    543,099.06/814,919.94 = 243,792.72/x
  3. Step 3: Cross multiply
    543,099.06x = 814,919.94 × 243,792.72
  4. Step 4: Simplify right side
    543,099.06x = 198,671,548,754.84
  5. Step 5: Solve for x
    x = 198,671,548,754.84/543,099.06
  6. Step 6: Final answer
    x = 365,810.89

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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.