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Finding the Fourth Proportional to 123,969.20, 186,099.60 and 123,094.40

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Solution

The fourth proportional to 123,969.20, 186,099.60 and 123,094.40 is: 184,786.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,969.20 : 186,099.60 = 123,094.40 : x
  2. Step 2: Convert to fraction form
    123,969.20/186,099.60 = 123,094.40/x
  3. Step 3: Cross multiply
    123,969.20x = 186,099.60 × 123,094.40
  4. Step 4: Simplify right side
    123,969.20x = 22,907,818,602.24
  5. Step 5: Solve for x
    x = 22,907,818,602.24/123,969.20
  6. Step 6: Final answer
    x = 184,786.37

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1.5x scale

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.