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Finding the Fourth Proportional to 133,433.76, 184,289.76 and 90,918.48

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Solution

The fourth proportional to 133,433.76, 184,289.76 and 90,918.48 is: 125,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,433.76 : 184,289.76 = 90,918.48 : x
  2. Step 2: Convert to fraction form
    133,433.76/184,289.76 = 90,918.48/x
  3. Step 3: Cross multiply
    133,433.76x = 184,289.76 × 90,918.48
  4. Step 4: Simplify right side
    133,433.76x = 16,755,344,858.76
  5. Step 5: Solve for x
    x = 16,755,344,858.76/133,433.76
  6. Step 6: Final answer
    x = 125,570.51

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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.