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Finding the Fourth Proportional to 133,392.80, 184,097.94 and 76,815.20

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Solution

The fourth proportional to 133,392.80, 184,097.94 and 76,815.20 is: 106,014.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,392.80 : 184,097.94 = 76,815.20 : x
  2. Step 2: Convert to fraction form
    133,392.80/184,097.94 = 76,815.20/x
  3. Step 3: Cross multiply
    133,392.80x = 184,097.94 × 76,815.20
  4. Step 4: Simplify right side
    133,392.80x = 14,141,520,080.69
  5. Step 5: Solve for x
    x = 14,141,520,080.69/133,392.80
  6. Step 6: Final answer
    x = 106,014.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.