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Finding the Fourth Proportional to 192,124.17, 288,090.95 and 65,728.67

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Solution

The fourth proportional to 192,124.17, 288,090.95 and 65,728.67 is: 98,560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,124.17 : 288,090.95 = 65,728.67 : x
  2. Step 2: Convert to fraction form
    192,124.17/288,090.95 = 65,728.67/x
  3. Step 3: Cross multiply
    192,124.17x = 288,090.95 × 65,728.67
  4. Step 4: Simplify right side
    192,124.17x = 18,935,833,213.44
  5. Step 5: Solve for x
    x = 18,935,833,213.44/192,124.17
  6. Step 6: Final answer
    x = 98,560.39

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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.