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Finding the Fourth Proportional to 150,684.84, 207,893.46 and 86,107.68

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Solution

The fourth proportional to 150,684.84, 207,893.46 and 86,107.68 is: 118,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,684.84 : 207,893.46 = 86,107.68 : x
  2. Step 2: Convert to fraction form
    150,684.84/207,893.46 = 86,107.68/x
  3. Step 3: Cross multiply
    150,684.84x = 207,893.46 × 86,107.68
  4. Step 4: Simplify right side
    150,684.84x = 17,901,223,527.77
  5. Step 5: Solve for x
    x = 17,901,223,527.77/150,684.84
  6. Step 6: Final answer
    x = 118,799.10

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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.