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Finding the Fourth Proportional to 130,978.04, 196,468.41 and 104,848.88

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Solution

The fourth proportional to 130,978.04, 196,468.41 and 104,848.88 is: 157,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,978.04 : 196,468.41 = 104,848.88 : x
  2. Step 2: Convert to fraction form
    130,978.04/196,468.41 = 104,848.88/x
  3. Step 3: Cross multiply
    130,978.04x = 196,468.41 × 104,848.88
  4. Step 4: Simplify right side
    130,978.04x = 20,599,491,761.54
  5. Step 5: Solve for x
    x = 20,599,491,761.54/130,978.04
  6. Step 6: Final answer
    x = 157,274.40

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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.