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Finding the Fourth Proportional to 192,551.13, 288,895.10 and 85,925.39

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Solution

The fourth proportional to 192,551.13, 288,895.10 and 85,925.39 is: 128,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,551.13 : 288,895.10 = 85,925.39 : x
  2. Step 2: Convert to fraction form
    192,551.13/288,895.10 = 85,925.39/x
  3. Step 3: Cross multiply
    192,551.13x = 288,895.10 × 85,925.39
  4. Step 4: Simplify right side
    192,551.13x = 24,823,422,262.49
  5. Step 5: Solve for x
    x = 24,823,422,262.49/192,551.13
  6. Step 6: Final answer
    x = 128,918.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.