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Finding the Fourth Proportional to 140,103.40, 196,407.20 and 140,103.40

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Solution

The fourth proportional to 140,103.40, 196,407.20 and 140,103.40 is: 196,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,103.40 : 196,407.20 = 140,103.40 : x
  2. Step 2: Convert to fraction form
    140,103.40/196,407.20 = 140,103.40/x
  3. Step 3: Cross multiply
    140,103.40x = 196,407.20 × 140,103.40
  4. Step 4: Simplify right side
    140,103.40x = 27,517,316,504.48
  5. Step 5: Solve for x
    x = 27,517,316,504.48/140,103.40
  6. Step 6: Final answer
    x = 196,407.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.