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Finding the Fourth Proportional to 131,472.60, 197,208.90 and 48,355.80

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Solution

The fourth proportional to 131,472.60, 197,208.90 and 48,355.80 is: 72,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,472.60 : 197,208.90 = 48,355.80 : x
  2. Step 2: Convert to fraction form
    131,472.60/197,208.90 = 48,355.80/x
  3. Step 3: Cross multiply
    131,472.60x = 197,208.90 × 48,355.80
  4. Step 4: Simplify right side
    131,472.60x = 9,536,194,126.62
  5. Step 5: Solve for x
    x = 9,536,194,126.62/131,472.60
  6. Step 6: Final answer
    x = 72,533.70

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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.