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Finding the Fourth Proportional to 192,021.04, 288,085.84 and 65,688.64

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Solution

The fourth proportional to 192,021.04, 288,085.84 and 65,688.64 is: 98,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,021.04 : 288,085.84 = 65,688.64 : x
  2. Step 2: Convert to fraction form
    192,021.04/288,085.84 = 65,688.64/x
  3. Step 3: Cross multiply
    192,021.04x = 288,085.84 × 65,688.64
  4. Step 4: Simplify right side
    192,021.04x = 18,923,967,032.86
  5. Step 5: Solve for x
    x = 18,923,967,032.86/192,021.04
  6. Step 6: Final answer
    x = 98,551.53

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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.