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Finding the Fourth Proportional to 117,685.44, 177,168.47 and 107,222.67

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Solution

The fourth proportional to 117,685.44, 177,168.47 and 107,222.67 is: 161,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,685.44 : 177,168.47 = 107,222.67 : x
  2. Step 2: Convert to fraction form
    117,685.44/177,168.47 = 107,222.67/x
  3. Step 3: Cross multiply
    117,685.44x = 177,168.47 × 107,222.67
  4. Step 4: Simplify right side
    117,685.44x = 18,996,475,857.10
  5. Step 5: Solve for x
    x = 18,996,475,857.10/117,685.44
  6. Step 6: Final answer
    x = 161,417.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.