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Finding the Fourth Proportional to 218,804.70, 328,207.05 and 184,590.30

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Solution

The fourth proportional to 218,804.70, 328,207.05 and 184,590.30 is: 276,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,804.70 : 328,207.05 = 184,590.30 : x
  2. Step 2: Convert to fraction form
    218,804.70/328,207.05 = 184,590.30/x
  3. Step 3: Cross multiply
    218,804.70x = 328,207.05 × 184,590.30
  4. Step 4: Simplify right side
    218,804.70x = 60,583,837,821.62
  5. Step 5: Solve for x
    x = 60,583,837,821.62/218,804.70
  6. Step 6: Final answer
    x = 276,885.45

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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.