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Finding the Fourth Proportional to 104,599.60, 156,802.20 and 73,009.60

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Solution

The fourth proportional to 104,599.60, 156,802.20 and 73,009.60 is: 109,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,599.60 : 156,802.20 = 73,009.60 : x
  2. Step 2: Convert to fraction form
    104,599.60/156,802.20 = 73,009.60/x
  3. Step 3: Cross multiply
    104,599.60x = 156,802.20 × 73,009.60
  4. Step 4: Simplify right side
    104,599.60x = 11,448,065,901.12
  5. Step 5: Solve for x
    x = 11,448,065,901.12/104,599.60
  6. Step 6: Final answer
    x = 109,446.56

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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.