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Finding the Fourth Proportional to 173,378.54, 260,103.46 and 78,563.18

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Solution

The fourth proportional to 173,378.54, 260,103.46 and 78,563.18 is: 117,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,378.54 : 260,103.46 = 78,563.18 : x
  2. Step 2: Convert to fraction form
    173,378.54/260,103.46 = 78,563.18/x
  3. Step 3: Cross multiply
    173,378.54x = 260,103.46 × 78,563.18
  4. Step 4: Simplify right side
    173,378.54x = 20,434,554,946.60
  5. Step 5: Solve for x
    x = 20,434,554,946.60/173,378.54
  6. Step 6: Final answer
    x = 117,860.92

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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.