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Finding the Fourth Proportional to 277,690.09, 416,536.51 and 67,328.03

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Solution

The fourth proportional to 277,690.09, 416,536.51 and 67,328.03 is: 100,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,690.09 : 416,536.51 = 67,328.03 : x
  2. Step 2: Convert to fraction form
    277,690.09/416,536.51 = 67,328.03/x
  3. Step 3: Cross multiply
    277,690.09x = 416,536.51 × 67,328.03
  4. Step 4: Simplify right side
    277,690.09x = 28,044,582,641.38
  5. Step 5: Solve for x
    x = 28,044,582,641.38/277,690.09
  6. Step 6: Final answer
    x = 100,992.38

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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.