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Finding the Fourth Proportional to 173,859.20, 260,788.80 and 165,694.40

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Solution

The fourth proportional to 173,859.20, 260,788.80 and 165,694.40 is: 248,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,859.20 : 260,788.80 = 165,694.40 : x
  2. Step 2: Convert to fraction form
    173,859.20/260,788.80 = 165,694.40/x
  3. Step 3: Cross multiply
    173,859.20x = 260,788.80 × 165,694.40
  4. Step 4: Simplify right side
    173,859.20x = 43,211,243,742.72
  5. Step 5: Solve for x
    x = 43,211,243,742.72/173,859.20
  6. Step 6: Final answer
    x = 248,541.60

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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.