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Finding the Fourth Proportional to 173,075.55, 259,657.17 and 53,138.62

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Solution

The fourth proportional to 173,075.55, 259,657.17 and 53,138.62 is: 79,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,075.55 : 259,657.17 = 53,138.62 : x
  2. Step 2: Convert to fraction form
    173,075.55/259,657.17 = 53,138.62/x
  3. Step 3: Cross multiply
    173,075.55x = 259,657.17 × 53,138.62
  4. Step 4: Simplify right side
    173,075.55x = 13,797,823,686.91
  5. Step 5: Solve for x
    x = 13,797,823,686.91/173,075.55
  6. Step 6: Final answer
    x = 79,721.39

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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.