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Finding the Fourth Proportional to 183,690.60, 275,538.82 and 69,840.15

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Solution

The fourth proportional to 183,690.60, 275,538.82 and 69,840.15 is: 104,761.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,690.60 : 275,538.82 = 69,840.15 : x
  2. Step 2: Convert to fraction form
    183,690.60/275,538.82 = 69,840.15/x
  3. Step 3: Cross multiply
    183,690.60x = 275,538.82 × 69,840.15
  4. Step 4: Simplify right side
    183,690.60x = 19,243,671,141.93
  5. Step 5: Solve for x
    x = 19,243,671,141.93/183,690.60
  6. Step 6: Final answer
    x = 104,761.33

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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.