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Finding the Fourth Proportional to 192,561.76, 288,889.98 and 66,203.92

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Solution

The fourth proportional to 192,561.76, 288,889.98 and 66,203.92 is: 99,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,561.76 : 288,889.98 = 66,203.92 : x
  2. Step 2: Convert to fraction form
    192,561.76/288,889.98 = 66,203.92/x
  3. Step 3: Cross multiply
    192,561.76x = 288,889.98 × 66,203.92
  4. Step 4: Simplify right side
    192,561.76x = 19,125,649,124.72
  5. Step 5: Solve for x
    x = 19,125,649,124.72/192,561.76
  6. Step 6: Final answer
    x = 99,322.16

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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.