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Finding the Fourth Proportional to 148,361.84, 221,463.54 and 137,397.68

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Solution

The fourth proportional to 148,361.84, 221,463.54 and 137,397.68 is: 205,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,361.84 : 221,463.54 = 137,397.68 : x
  2. Step 2: Convert to fraction form
    148,361.84/221,463.54 = 137,397.68/x
  3. Step 3: Cross multiply
    148,361.84x = 221,463.54 × 137,397.68
  4. Step 4: Simplify right side
    148,361.84x = 30,428,576,600.59
  5. Step 5: Solve for x
    x = 30,428,576,600.59/148,361.84
  6. Step 6: Final answer
    x = 205,097.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.