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Finding the Fourth Proportional to 173,365, 260,144.70 and 172,043.08

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Solution

The fourth proportional to 173,365, 260,144.70 and 172,043.08 is: 258,161.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,365 : 260,144.70 = 172,043.08 : x
  2. Step 2: Convert to fraction form
    173,365/260,144.70 = 172,043.08/x
  3. Step 3: Cross multiply
    173,365x = 260,144.70 × 172,043.08
  4. Step 4: Simplify right side
    173,365x = 44,756,095,433.68
  5. Step 5: Solve for x
    x = 44,756,095,433.68/173,365
  6. Step 6: Final answer
    x = 258,161.08

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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.