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Finding the Fourth Proportional to 104,018.76, 155,967.93 and 40,764.96

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Solution

The fourth proportional to 104,018.76, 155,967.93 and 40,764.96 is: 61,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,018.76 : 155,967.93 = 40,764.96 : x
  2. Step 2: Convert to fraction form
    104,018.76/155,967.93 = 40,764.96/x
  3. Step 3: Cross multiply
    104,018.76x = 155,967.93 × 40,764.96
  4. Step 4: Simplify right side
    104,018.76x = 6,358,026,427.73
  5. Step 5: Solve for x
    x = 6,358,026,427.73/104,018.76
  6. Step 6: Final answer
    x = 61,123.84

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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.