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Finding the Fourth Proportional to 173,619.60, 260,378.20 and 68,403.60

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Solution

The fourth proportional to 173,619.60, 260,378.20 and 68,403.60 is: 102,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,619.60 : 260,378.20 = 68,403.60 : x
  2. Step 2: Convert to fraction form
    173,619.60/260,378.20 = 68,403.60/x
  3. Step 3: Cross multiply
    173,619.60x = 260,378.20 × 68,403.60
  4. Step 4: Simplify right side
    173,619.60x = 17,810,806,241.52
  5. Step 5: Solve for x
    x = 17,810,806,241.52/173,619.60
  6. Step 6: Final answer
    x = 102,585.23

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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.