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Finding the Fourth Proportional to 169,129.90, 253,366.80 and 94,115.80

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Solution

The fourth proportional to 169,129.90, 253,366.80 and 94,115.80 is: 140,991.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,129.90 : 253,366.80 = 94,115.80 : x
  2. Step 2: Convert to fraction form
    169,129.90/253,366.80 = 94,115.80/x
  3. Step 3: Cross multiply
    169,129.90x = 253,366.80 × 94,115.80
  4. Step 4: Simplify right side
    169,129.90x = 23,845,819,075.44
  5. Step 5: Solve for x
    x = 23,845,819,075.44/169,129.90
  6. Step 6: Final answer
    x = 140,991.15

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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.