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Finding the Fourth Proportional to 68,218.92, 102,222.54 and 45,953.64

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Solution

The fourth proportional to 68,218.92, 102,222.54 and 45,953.64 is: 68,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,218.92 : 102,222.54 = 45,953.64 : x
  2. Step 2: Convert to fraction form
    68,218.92/102,222.54 = 45,953.64/x
  3. Step 3: Cross multiply
    68,218.92x = 102,222.54 × 45,953.64
  4. Step 4: Simplify right side
    68,218.92x = 4,697,497,803.05
  5. Step 5: Solve for x
    x = 4,697,497,803.05/68,218.92
  6. Step 6: Final answer
    x = 68,859.16

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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.