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Finding the Fourth Proportional to 104,635.76, 156,904.50 and 38,028.92

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Solution

The fourth proportional to 104,635.76, 156,904.50 and 38,028.92 is: 57,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,635.76 : 156,904.50 = 38,028.92 : x
  2. Step 2: Convert to fraction form
    104,635.76/156,904.50 = 38,028.92/x
  3. Step 3: Cross multiply
    104,635.76x = 156,904.50 × 38,028.92
  4. Step 4: Simplify right side
    104,635.76x = 5,966,908,678.14
  5. Step 5: Solve for x
    x = 5,966,908,678.14/104,635.76
  6. Step 6: Final answer
    x = 57,025.52

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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.