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Finding the Fourth Proportional to 131,480.70, 197,308.35 and 48,374.70

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Solution

The fourth proportional to 131,480.70, 197,308.35 and 48,374.70 is: 72,594.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,480.70 : 197,308.35 = 48,374.70 : x
  2. Step 2: Convert to fraction form
    131,480.70/197,308.35 = 48,374.70/x
  3. Step 3: Cross multiply
    131,480.70x = 197,308.35 × 48,374.70
  4. Step 4: Simplify right side
    131,480.70x = 9,544,732,238.75
  5. Step 5: Solve for x
    x = 9,544,732,238.75/131,480.70
  6. Step 6: Final answer
    x = 72,594.17

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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.