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Finding the Fourth Proportional to 133,472.80, 200,209.20 and 130,848.40

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Solution

The fourth proportional to 133,472.80, 200,209.20 and 130,848.40 is: 196,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,472.80 : 200,209.20 = 130,848.40 : x
  2. Step 2: Convert to fraction form
    133,472.80/200,209.20 = 130,848.40/x
  3. Step 3: Cross multiply
    133,472.80x = 200,209.20 × 130,848.40
  4. Step 4: Simplify right side
    133,472.80x = 26,197,053,485.28
  5. Step 5: Solve for x
    x = 26,197,053,485.28/133,472.80
  6. Step 6: Final answer
    x = 196,272.60

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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.