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Finding the Fourth Proportional to 248,361.36, 342,785.92 and 140,941.40

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Solution

The fourth proportional to 248,361.36, 342,785.92 and 140,941.40 is: 194,525.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,361.36 : 342,785.92 = 140,941.40 : x
  2. Step 2: Convert to fraction form
    248,361.36/342,785.92 = 140,941.40/x
  3. Step 3: Cross multiply
    248,361.36x = 342,785.92 × 140,941.40
  4. Step 4: Simplify right side
    248,361.36x = 48,312,727,465.09
  5. Step 5: Solve for x
    x = 48,312,727,465.09/248,361.36
  6. Step 6: Final answer
    x = 194,525.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.