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Finding the Fourth Proportional to 131,124, 196,686.54 and 48,018

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Solution

The fourth proportional to 131,124, 196,686.54 and 48,018 is: 72,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,124 : 196,686.54 = 48,018 : x
  2. Step 2: Convert to fraction form
    131,124/196,686.54 = 48,018/x
  3. Step 3: Cross multiply
    131,124x = 196,686.54 × 48,018
  4. Step 4: Simplify right side
    131,124x = 9,444,494,277.72
  5. Step 5: Solve for x
    x = 9,444,494,277.72/131,124
  6. Step 6: Final answer
    x = 72,027.20

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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.