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Finding the Fourth Proportional to 266,764.40, 368,184.12 and 171,390.32

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Solution

The fourth proportional to 266,764.40, 368,184.12 and 171,390.32 is: 236,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,764.40 : 368,184.12 = 171,390.32 : x
  2. Step 2: Convert to fraction form
    266,764.40/368,184.12 = 171,390.32/x
  3. Step 3: Cross multiply
    266,764.40x = 368,184.12 × 171,390.32
  4. Step 4: Simplify right side
    266,764.40x = 63,103,194,145.72
  5. Step 5: Solve for x
    x = 63,103,194,145.72/266,764.40
  6. Step 6: Final answer
    x = 236,550.28

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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.