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Finding the Fourth Proportional to 192,114.60, 288,171.90 and 122,303.40

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Solution

The fourth proportional to 192,114.60, 288,171.90 and 122,303.40 is: 183,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,114.60 : 288,171.90 = 122,303.40 : x
  2. Step 2: Convert to fraction form
    192,114.60/288,171.90 = 122,303.40/x
  3. Step 3: Cross multiply
    192,114.60x = 288,171.90 × 122,303.40
  4. Step 4: Simplify right side
    192,114.60x = 35,244,403,154.46
  5. Step 5: Solve for x
    x = 35,244,403,154.46/192,114.60
  6. Step 6: Final answer
    x = 183,455.10

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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.