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Finding the Fourth Proportional to 104,312.74, 156,428.16 and 36,830.38

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Solution

The fourth proportional to 104,312.74, 156,428.16 and 36,830.38 is: 55,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,312.74 : 156,428.16 = 36,830.38 : x
  2. Step 2: Convert to fraction form
    104,312.74/156,428.16 = 36,830.38/x
  3. Step 3: Cross multiply
    104,312.74x = 156,428.16 × 36,830.38
  4. Step 4: Simplify right side
    104,312.74x = 5,761,308,575.50
  5. Step 5: Solve for x
    x = 5,761,308,575.50/104,312.74
  6. Step 6: Final answer
    x = 55,231.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.