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Finding the Fourth Proportional to 374,792.23, 517,211.73 and 202,710.39

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Solution

The fourth proportional to 374,792.23, 517,211.73 and 202,710.39 is: 279,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,792.23 : 517,211.73 = 202,710.39 : x
  2. Step 2: Convert to fraction form
    374,792.23/517,211.73 = 202,710.39/x
  3. Step 3: Cross multiply
    374,792.23x = 517,211.73 × 202,710.39
  4. Step 4: Simplify right side
    374,792.23x = 104,844,191,500.88
  5. Step 5: Solve for x
    x = 104,844,191,500.88/374,792.23
  6. Step 6: Final answer
    x = 279,739.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.