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Finding the Fourth Proportional to 189,990.16, 262,186.67 and 103,957.22

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Solution

The fourth proportional to 189,990.16, 262,186.67 and 103,957.22 is: 143,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,990.16 : 262,186.67 = 103,957.22 : x
  2. Step 2: Convert to fraction form
    189,990.16/262,186.67 = 103,957.22/x
  3. Step 3: Cross multiply
    189,990.16x = 262,186.67 × 103,957.22
  4. Step 4: Simplify right side
    189,990.16x = 27,256,198,249.62
  5. Step 5: Solve for x
    x = 27,256,198,249.62/189,990.16
  6. Step 6: Final answer
    x = 143,461.11

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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.