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Finding the Fourth Proportional to 213,084.84, 294,167.64 and 155,659.68

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Solution

The fourth proportional to 213,084.84, 294,167.64 and 155,659.68 is: 214,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,084.84 : 294,167.64 = 155,659.68 : x
  2. Step 2: Convert to fraction form
    213,084.84/294,167.64 = 155,659.68/x
  3. Step 3: Cross multiply
    213,084.84x = 294,167.64 × 155,659.68
  4. Step 4: Simplify right side
    213,084.84x = 45,790,040,708.76
  5. Step 5: Solve for x
    x = 45,790,040,708.76/213,084.84
  6. Step 6: Final answer
    x = 214,891.12

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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.