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Finding the Fourth Proportional to 104,337.88, 143,987.09 and 56,591.21

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Solution

The fourth proportional to 104,337.88, 143,987.09 and 56,591.21 is: 78,096.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,337.88 : 143,987.09 = 56,591.21 : x
  2. Step 2: Convert to fraction form
    104,337.88/143,987.09 = 56,591.21/x
  3. Step 3: Cross multiply
    104,337.88x = 143,987.09 × 56,591.21
  4. Step 4: Simplify right side
    104,337.88x = 8,148,403,724.49
  5. Step 5: Solve for x
    x = 8,148,403,724.49/104,337.88
  6. Step 6: Final answer
    x = 78,096.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.