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Finding the Fourth Proportional to 85,773.70, 118,368.05 and 48,047.98

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Solution

The fourth proportional to 85,773.70, 118,368.05 and 48,047.98 is: 66,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,773.70 : 118,368.05 = 48,047.98 : x
  2. Step 2: Convert to fraction form
    85,773.70/118,368.05 = 48,047.98/x
  3. Step 3: Cross multiply
    85,773.70x = 118,368.05 × 48,047.98
  4. Step 4: Simplify right side
    85,773.70x = 5,687,345,699.04
  5. Step 5: Solve for x
    x = 5,687,345,699.04/85,773.70
  6. Step 6: Final answer
    x = 66,306.41

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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.