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Finding the Fourth Proportional to 131,461.80, 197,192.70 and 96,210.60

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Solution

The fourth proportional to 131,461.80, 197,192.70 and 96,210.60 is: 144,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,461.80 : 197,192.70 = 96,210.60 : x
  2. Step 2: Convert to fraction form
    131,461.80/197,192.70 = 96,210.60/x
  3. Step 3: Cross multiply
    131,461.80x = 197,192.70 × 96,210.60
  4. Step 4: Simplify right side
    131,461.80x = 18,972,027,982.62
  5. Step 5: Solve for x
    x = 18,972,027,982.62/131,461.80
  6. Step 6: Final answer
    x = 144,315.90

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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.