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Finding the Fourth Proportional to 368,940.60, 553,313.70 and 116,220.60

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Solution

The fourth proportional to 368,940.60, 553,313.70 and 116,220.60 is: 174,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,940.60 : 553,313.70 = 116,220.60 : x
  2. Step 2: Convert to fraction form
    368,940.60/553,313.70 = 116,220.60/x
  3. Step 3: Cross multiply
    368,940.60x = 553,313.70 × 116,220.60
  4. Step 4: Simplify right side
    368,940.60x = 64,306,450,202.22
  5. Step 5: Solve for x
    x = 64,306,450,202.22/368,940.60
  6. Step 6: Final answer
    x = 174,300.28

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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.