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Finding the Fourth Proportional to 171,494.66, 236,619.88 and 98,919.74

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Solution

The fourth proportional to 171,494.66, 236,619.88 and 98,919.74 is: 136,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,494.66 : 236,619.88 = 98,919.74 : x
  2. Step 2: Convert to fraction form
    171,494.66/236,619.88 = 98,919.74/x
  3. Step 3: Cross multiply
    171,494.66x = 236,619.88 × 98,919.74
  4. Step 4: Simplify right side
    171,494.66x = 23,406,377,008.43
  5. Step 5: Solve for x
    x = 23,406,377,008.43/171,494.66
  6. Step 6: Final answer
    x = 136,484.58

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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.