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Finding the Fourth Proportional to 85,967.48, 118,640.49 and 49,670.48

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Solution

The fourth proportional to 85,967.48, 118,640.49 and 49,670.48 is: 68,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,967.48 : 118,640.49 = 49,670.48 : x
  2. Step 2: Convert to fraction form
    85,967.48/118,640.49 = 49,670.48/x
  3. Step 3: Cross multiply
    85,967.48x = 118,640.49 × 49,670.48
  4. Step 4: Simplify right side
    85,967.48x = 5,892,930,085.74
  5. Step 5: Solve for x
    x = 5,892,930,085.74/85,967.48
  6. Step 6: Final answer
    x = 68,548.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.