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Finding the Fourth Proportional to 133,776.69, 184,615.35 and 75,628.80

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Solution

The fourth proportional to 133,776.69, 184,615.35 and 75,628.80 is: 104,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,776.69 : 184,615.35 = 75,628.80 : x
  2. Step 2: Convert to fraction form
    133,776.69/184,615.35 = 75,628.80/x
  3. Step 3: Cross multiply
    133,776.69x = 184,615.35 × 75,628.80
  4. Step 4: Simplify right side
    133,776.69x = 13,962,237,382.08
  5. Step 5: Solve for x
    x = 13,962,237,382.08/133,776.69
  6. Step 6: Final answer
    x = 104,369.73

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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.