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Finding the Fourth Proportional to 173,684.58, 260,518.92 and 72,440.82

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Solution

The fourth proportional to 173,684.58, 260,518.92 and 72,440.82 is: 108,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,684.58 : 260,518.92 = 72,440.82 : x
  2. Step 2: Convert to fraction form
    173,684.58/260,518.92 = 72,440.82/x
  3. Step 3: Cross multiply
    173,684.58x = 260,518.92 × 72,440.82
  4. Step 4: Simplify right side
    173,684.58x = 18,872,204,190.31
  5. Step 5: Solve for x
    x = 18,872,204,190.31/173,684.58
  6. Step 6: Final answer
    x = 108,657.91

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1.5x scale

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.