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Finding the Fourth Proportional to 85,840.56, 118,460.88 and 48,114

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Solution

The fourth proportional to 85,840.56, 118,460.88 and 48,114 is: 66,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840.56 : 118,460.88 = 48,114 : x
  2. Step 2: Convert to fraction form
    85,840.56/118,460.88 = 48,114/x
  3. Step 3: Cross multiply
    85,840.56x = 118,460.88 × 48,114
  4. Step 4: Simplify right side
    85,840.56x = 5,699,626,780.32
  5. Step 5: Solve for x
    x = 5,699,626,780.32/85,840.56
  6. Step 6: Final answer
    x = 66,397.83

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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.