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Finding the Fourth Proportional to 104,374.88, 156,297.36 and 87,463.43

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Solution

The fourth proportional to 104,374.88, 156,297.36 and 87,463.43 is: 130,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,374.88 : 156,297.36 = 87,463.43 : x
  2. Step 2: Convert to fraction form
    104,374.88/156,297.36 = 87,463.43/x
  3. Step 3: Cross multiply
    104,374.88x = 156,297.36 × 87,463.43
  4. Step 4: Simplify right side
    104,374.88x = 13,670,303,338.16
  5. Step 5: Solve for x
    x = 13,670,303,338.16/104,374.88
  6. Step 6: Final answer
    x = 130,973.12

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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.