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Finding the Fourth Proportional to 157,361.40, 217,030.86 and 144,241.56

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Solution

The fourth proportional to 157,361.40, 217,030.86 and 144,241.56 is: 198,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,361.40 : 217,030.86 = 144,241.56 : x
  2. Step 2: Convert to fraction form
    157,361.40/217,030.86 = 144,241.56/x
  3. Step 3: Cross multiply
    157,361.40x = 217,030.86 × 144,241.56
  4. Step 4: Simplify right side
    157,361.40x = 31,304,869,814.54
  5. Step 5: Solve for x
    x = 31,304,869,814.54/157,361.40
  6. Step 6: Final answer
    x = 198,936.14

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1.5x scale

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.