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Finding the Fourth Proportional to 150,622.84, 207,836.04 and 86,948.38

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Solution

The fourth proportional to 150,622.84, 207,836.04 and 86,948.38 is: 119,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,622.84 : 207,836.04 = 86,948.38 : x
  2. Step 2: Convert to fraction form
    150,622.84/207,836.04 = 86,948.38/x
  3. Step 3: Cross multiply
    150,622.84x = 207,836.04 × 86,948.38
  4. Step 4: Simplify right side
    150,622.84x = 18,071,006,983.62
  5. Step 5: Solve for x
    x = 18,071,006,983.62/150,622.84
  6. Step 6: Final answer
    x = 119,975.21

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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.