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Finding the Fourth Proportional to 173,856.40, 260,784.60 and 134,441.80

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Solution

The fourth proportional to 173,856.40, 260,784.60 and 134,441.80 is: 201,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,856.40 : 260,784.60 = 134,441.80 : x
  2. Step 2: Convert to fraction form
    173,856.40/260,784.60 = 134,441.80/x
  3. Step 3: Cross multiply
    173,856.40x = 260,784.60 × 134,441.80
  4. Step 4: Simplify right side
    173,856.40x = 35,060,351,036.28
  5. Step 5: Solve for x
    x = 35,060,351,036.28/173,856.40
  6. Step 6: Final answer
    x = 201,662.70

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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.