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Finding the Fourth Proportional to 173,728.60, 260,592.90 and 118,432.60

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Solution

The fourth proportional to 173,728.60, 260,592.90 and 118,432.60 is: 177,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,728.60 : 260,592.90 = 118,432.60 : x
  2. Step 2: Convert to fraction form
    173,728.60/260,592.90 = 118,432.60/x
  3. Step 3: Cross multiply
    173,728.60x = 260,592.90 × 118,432.60
  4. Step 4: Simplify right side
    173,728.60x = 30,862,694,688.54
  5. Step 5: Solve for x
    x = 30,862,694,688.54/173,728.60
  6. Step 6: Final answer
    x = 177,648.90

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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.