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Finding the Fourth Proportional to 272,690.88, 409,055.03 and 92,703.08

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Solution

The fourth proportional to 272,690.88, 409,055.03 and 92,703.08 is: 139,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,690.88 : 409,055.03 = 92,703.08 : x
  2. Step 2: Convert to fraction form
    272,690.88/409,055.03 = 92,703.08/x
  3. Step 3: Cross multiply
    272,690.88x = 409,055.03 × 92,703.08
  4. Step 4: Simplify right side
    272,690.88x = 37,920,658,661.70
  5. Step 5: Solve for x
    x = 37,920,658,661.70/272,690.88
  6. Step 6: Final answer
    x = 139,060.97

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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.