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Finding the Fourth Proportional to 185,409.69, 277,949.60 and 67,054.72

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Solution

The fourth proportional to 185,409.69, 277,949.60 and 67,054.72 is: 100,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,409.69 : 277,949.60 = 67,054.72 : x
  2. Step 2: Convert to fraction form
    185,409.69/277,949.60 = 67,054.72/x
  3. Step 3: Cross multiply
    185,409.69x = 277,949.60 × 67,054.72
  4. Step 4: Simplify right side
    185,409.69x = 18,637,830,877.09
  5. Step 5: Solve for x
    x = 18,637,830,877.09/185,409.69
  6. Step 6: Final answer
    x = 100,522.42

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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.