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Finding the Fourth Proportional to 207,661.91, 286,573.44 and 112,168.60

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Solution

The fourth proportional to 207,661.91, 286,573.44 and 112,168.60 is: 154,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,661.91 : 286,573.44 = 112,168.60 : x
  2. Step 2: Convert to fraction form
    207,661.91/286,573.44 = 112,168.60/x
  3. Step 3: Cross multiply
    207,661.91x = 286,573.44 × 112,168.60
  4. Step 4: Simplify right side
    207,661.91x = 32,144,541,561.98
  5. Step 5: Solve for x
    x = 32,144,541,561.98/207,661.91
  6. Step 6: Final answer
    x = 154,792.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.