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Finding the Fourth Proportional to 104,679, 156,804.66 and 87,092.28

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Solution

The fourth proportional to 104,679, 156,804.66 and 87,092.28 is: 130,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,679 : 156,804.66 = 87,092.28 : x
  2. Step 2: Convert to fraction form
    104,679/156,804.66 = 87,092.28/x
  3. Step 3: Cross multiply
    104,679x = 156,804.66 × 87,092.28
  4. Step 4: Simplify right side
    104,679x = 13,656,475,354.02
  5. Step 5: Solve for x
    x = 13,656,475,354.02/104,679
  6. Step 6: Final answer
    x = 130,460.51

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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.