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Finding the Fourth Proportional to 85,774.70, 118,369.43 and 48,048.98

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Solution

The fourth proportional to 85,774.70, 118,369.43 and 48,048.98 is: 66,307.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,774.70 : 118,369.43 = 48,048.98 : x
  2. Step 2: Convert to fraction form
    85,774.70/118,369.43 = 48,048.98/x
  3. Step 3: Cross multiply
    85,774.70x = 118,369.43 × 48,048.98
  4. Step 4: Simplify right side
    85,774.70x = 5,687,530,374.68
  5. Step 5: Solve for x
    x = 5,687,530,374.68/85,774.70
  6. Step 6: Final answer
    x = 66,307.79

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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.