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Finding the Fourth Proportional to 306,293.53, 422,690.06 and 168,477.91

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Solution

The fourth proportional to 306,293.53, 422,690.06 and 168,477.91 is: 232,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,293.53 : 422,690.06 = 168,477.91 : x
  2. Step 2: Convert to fraction form
    306,293.53/422,690.06 = 168,477.91/x
  3. Step 3: Cross multiply
    306,293.53x = 422,690.06 × 168,477.91
  4. Step 4: Simplify right side
    306,293.53x = 71,213,936,194.32
  5. Step 5: Solve for x
    x = 71,213,936,194.32/306,293.53
  6. Step 6: Final answer
    x = 232,502.25

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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.