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Finding the Fourth Proportional to 219,376.53, 328,999.32 and 93,014.64

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Solution

The fourth proportional to 219,376.53, 328,999.32 and 93,014.64 is: 139,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,376.53 : 328,999.32 = 93,014.64 : x
  2. Step 2: Convert to fraction form
    219,376.53/328,999.32 = 93,014.64/x
  3. Step 3: Cross multiply
    219,376.53x = 328,999.32 × 93,014.64
  4. Step 4: Simplify right side
    219,376.53x = 30,601,753,310.04
  5. Step 5: Solve for x
    x = 30,601,753,310.04/219,376.53
  6. Step 6: Final answer
    x = 139,494.20

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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.