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Finding the Fourth Proportional to 192,854.55, 289,104.58 and 66,464.77

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Solution

The fourth proportional to 192,854.55, 289,104.58 and 66,464.77 is: 99,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,854.55 : 289,104.58 = 66,464.77 : x
  2. Step 2: Convert to fraction form
    192,854.55/289,104.58 = 66,464.77/x
  3. Step 3: Cross multiply
    192,854.55x = 289,104.58 × 66,464.77
  4. Step 4: Simplify right side
    192,854.55x = 19,215,269,415.65
  5. Step 5: Solve for x
    x = 19,215,269,415.65/192,854.55
  6. Step 6: Final answer
    x = 99,636.07

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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.