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Finding the Fourth Proportional to 152,571.26, 210,720.76 and 104,089.98

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Solution

The fourth proportional to 152,571.26, 210,720.76 and 104,089.98 is: 143,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,571.26 : 210,720.76 = 104,089.98 : x
  2. Step 2: Convert to fraction form
    152,571.26/210,720.76 = 104,089.98/x
  3. Step 3: Cross multiply
    152,571.26x = 210,720.76 × 104,089.98
  4. Step 4: Simplify right side
    152,571.26x = 21,933,919,693.98
  5. Step 5: Solve for x
    x = 21,933,919,693.98/152,571.26
  6. Step 6: Final answer
    x = 143,761.80

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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.