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Finding the Fourth Proportional to 242,646.62, 363,956.66 and 74,166.88

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Solution

The fourth proportional to 242,646.62, 363,956.66 and 74,166.88 is: 111,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,646.62 : 363,956.66 = 74,166.88 : x
  2. Step 2: Convert to fraction form
    242,646.62/363,956.66 = 74,166.88/x
  3. Step 3: Cross multiply
    242,646.62x = 363,956.66 × 74,166.88
  4. Step 4: Simplify right side
    242,646.62x = 26,993,529,927.42
  5. Step 5: Solve for x
    x = 26,993,529,927.42/242,646.62
  6. Step 6: Final answer
    x = 111,246.26

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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.