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Finding the Fourth Proportional to 131,526.84, 197,290.32 and 122,079

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Solution

The fourth proportional to 131,526.84, 197,290.32 and 122,079 is: 183,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,526.84 : 197,290.32 = 122,079 : x
  2. Step 2: Convert to fraction form
    131,526.84/197,290.32 = 122,079/x
  3. Step 3: Cross multiply
    131,526.84x = 197,290.32 × 122,079
  4. Step 4: Simplify right side
    131,526.84x = 24,085,004,975.28
  5. Step 5: Solve for x
    x = 24,085,004,975.28/131,526.84
  6. Step 6: Final answer
    x = 183,118.56

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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.