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Finding the Fourth Proportional to 154,544.40, 231,629.40 and 65,611.20

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Solution

The fourth proportional to 154,544.40, 231,629.40 and 65,611.20 is: 98,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,544.40 : 231,629.40 = 65,611.20 : x
  2. Step 2: Convert to fraction form
    154,544.40/231,629.40 = 65,611.20/x
  3. Step 3: Cross multiply
    154,544.40x = 231,629.40 × 65,611.20
  4. Step 4: Simplify right side
    154,544.40x = 15,197,482,889.28
  5. Step 5: Solve for x
    x = 15,197,482,889.28/154,544.40
  6. Step 6: Final answer
    x = 98,337.32

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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.