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Finding the Fourth Proportional to 131,517.84, 197,276.76 and 122,070

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Solution

The fourth proportional to 131,517.84, 197,276.76 and 122,070 is: 183,105

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,517.84 : 197,276.76 = 122,070 : x
  2. Step 2: Convert to fraction form
    131,517.84/197,276.76 = 122,070/x
  3. Step 3: Cross multiply
    131,517.84x = 197,276.76 × 122,070
  4. Step 4: Simplify right side
    131,517.84x = 24,081,574,093.20
  5. Step 5: Solve for x
    x = 24,081,574,093.20/131,517.84
  6. Step 6: Final answer
    x = 183,105

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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.