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Finding the Fourth Proportional to 243,361.40, 364,869.30 and 93,543.80

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Solution

The fourth proportional to 243,361.40, 364,869.30 and 93,543.80 is: 140,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,361.40 : 364,869.30 = 93,543.80 : x
  2. Step 2: Convert to fraction form
    243,361.40/364,869.30 = 93,543.80/x
  3. Step 3: Cross multiply
    243,361.40x = 364,869.30 × 93,543.80
  4. Step 4: Simplify right side
    243,361.40x = 34,131,260,825.34
  5. Step 5: Solve for x
    x = 34,131,260,825.34/243,361.40
  6. Step 6: Final answer
    x = 140,249.28

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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.