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Finding the Fourth Proportional to 131,470.70, 197,293.40 and 48,364.70

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Solution

The fourth proportional to 131,470.70, 197,293.40 and 48,364.70 is: 72,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,470.70 : 197,293.40 = 48,364.70 : x
  2. Step 2: Convert to fraction form
    131,470.70/197,293.40 = 48,364.70/x
  3. Step 3: Cross multiply
    131,470.70x = 197,293.40 × 48,364.70
  4. Step 4: Simplify right side
    131,470.70x = 9,542,036,102.98
  5. Step 5: Solve for x
    x = 9,542,036,102.98/131,470.70
  6. Step 6: Final answer
    x = 72,579.18

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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.