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Finding the Fourth Proportional to 304,518.24, 420,191.18 and 168,551.86

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Solution

The fourth proportional to 304,518.24, 420,191.18 and 168,551.86 is: 232,577.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,518.24 : 420,191.18 = 168,551.86 : x
  2. Step 2: Convert to fraction form
    304,518.24/420,191.18 = 168,551.86/x
  3. Step 3: Cross multiply
    304,518.24x = 420,191.18 × 168,551.86
  4. Step 4: Simplify right side
    304,518.24x = 70,824,005,297.53
  5. Step 5: Solve for x
    x = 70,824,005,297.53/304,518.24
  6. Step 6: Final answer
    x = 232,577.22

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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.