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Finding the Fourth Proportional to 157,361.40, 236,502.90 and 137,086.20

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Solution

The fourth proportional to 157,361.40, 236,502.90 and 137,086.20 is: 206,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,361.40 : 236,502.90 = 137,086.20 : x
  2. Step 2: Convert to fraction form
    157,361.40/236,502.90 = 137,086.20/x
  3. Step 3: Cross multiply
    157,361.40x = 236,502.90 × 137,086.20
  4. Step 4: Simplify right side
    157,361.40x = 32,421,283,849.98
  5. Step 5: Solve for x
    x = 32,421,283,849.98/157,361.40
  6. Step 6: Final answer
    x = 206,030.73

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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.