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Finding the Fourth Proportional to 122,114.80, 183,172.20 and 109,673.20

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Solution

The fourth proportional to 122,114.80, 183,172.20 and 109,673.20 is: 164,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,114.80 : 183,172.20 = 109,673.20 : x
  2. Step 2: Convert to fraction form
    122,114.80/183,172.20 = 109,673.20/x
  3. Step 3: Cross multiply
    122,114.80x = 183,172.20 × 109,673.20
  4. Step 4: Simplify right side
    122,114.80x = 20,089,081,325.04
  5. Step 5: Solve for x
    x = 20,089,081,325.04/122,114.80
  6. Step 6: Final answer
    x = 164,509.80

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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.