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Finding the Fourth Proportional to 343,361.60, 515,261.10 and 201,206.60

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Solution

The fourth proportional to 343,361.60, 515,261.10 and 201,206.60 is: 301,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,361.60 : 515,261.10 = 201,206.60 : x
  2. Step 2: Convert to fraction form
    343,361.60/515,261.10 = 201,206.60/x
  3. Step 3: Cross multiply
    343,361.60x = 515,261.10 × 201,206.60
  4. Step 4: Simplify right side
    343,361.60x = 103,673,934,043.26
  5. Step 5: Solve for x
    x = 103,673,934,043.26/343,361.60
  6. Step 6: Final answer
    x = 301,938.06

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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.