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Finding the Fourth Proportional to 104,226.60, 156,455.10 and 64,828.20

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Solution

The fourth proportional to 104,226.60, 156,455.10 and 64,828.20 is: 97,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.60 : 156,455.10 = 64,828.20 : x
  2. Step 2: Convert to fraction form
    104,226.60/156,455.10 = 64,828.20/x
  3. Step 3: Cross multiply
    104,226.60x = 156,455.10 × 64,828.20
  4. Step 4: Simplify right side
    104,226.60x = 10,142,702,513.82
  5. Step 5: Solve for x
    x = 10,142,702,513.82/104,226.60
  6. Step 6: Final answer
    x = 97,313.95

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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.