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Finding the Fourth Proportional to 133,550.60, 200,066.70 and 74,280.20

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Solution

The fourth proportional to 133,550.60, 200,066.70 and 74,280.20 is: 111,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,550.60 : 200,066.70 = 74,280.20 : x
  2. Step 2: Convert to fraction form
    133,550.60/200,066.70 = 74,280.20/x
  3. Step 3: Cross multiply
    133,550.60x = 200,066.70 × 74,280.20
  4. Step 4: Simplify right side
    133,550.60x = 14,860,994,489.34
  5. Step 5: Solve for x
    x = 14,860,994,489.34/133,550.60
  6. Step 6: Final answer
    x = 111,276.13

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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.