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Finding the Fourth Proportional to 181,106.40, 271,465.20 and 68,743.20

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Solution

The fourth proportional to 181,106.40, 271,465.20 and 68,743.20 is: 103,041.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,106.40 : 271,465.20 = 68,743.20 : x
  2. Step 2: Convert to fraction form
    181,106.40/271,465.20 = 68,743.20/x
  3. Step 3: Cross multiply
    181,106.40x = 271,465.20 × 68,743.20
  4. Step 4: Simplify right side
    181,106.40x = 18,661,386,536.64
  5. Step 5: Solve for x
    x = 18,661,386,536.64/181,106.40
  6. Step 6: Final answer
    x = 103,041.01

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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.