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Finding the Fourth Proportional to 191,361.36, 287,103.60 and 58,267.32

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Solution

The fourth proportional to 191,361.36, 287,103.60 and 58,267.32 is: 87,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,361.36 : 287,103.60 = 58,267.32 : x
  2. Step 2: Convert to fraction form
    191,361.36/287,103.60 = 58,267.32/x
  3. Step 3: Cross multiply
    191,361.36x = 287,103.60 × 58,267.32
  4. Step 4: Simplify right side
    191,361.36x = 16,728,757,334.35
  5. Step 5: Solve for x
    x = 16,728,757,334.35/191,361.36
  6. Step 6: Final answer
    x = 87,419.72

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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.