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Finding the Fourth Proportional to 117,912.77, 162,820.77 and 114,099.81

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Solution

The fourth proportional to 117,912.77, 162,820.77 and 114,099.81 is: 157,555.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,912.77 : 162,820.77 = 114,099.81 : x
  2. Step 2: Convert to fraction form
    117,912.77/162,820.77 = 114,099.81/x
  3. Step 3: Cross multiply
    117,912.77x = 162,820.77 × 114,099.81
  4. Step 4: Simplify right side
    117,912.77x = 18,577,818,997.96
  5. Step 5: Solve for x
    x = 18,577,818,997.96/117,912.77
  6. Step 6: Final answer
    x = 157,555.62

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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.