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Finding the Fourth Proportional to 133,261.76, 184,052.40 and 90,746.48

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Solution

The fourth proportional to 133,261.76, 184,052.40 and 90,746.48 is: 125,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,261.76 : 184,052.40 = 90,746.48 : x
  2. Step 2: Convert to fraction form
    133,261.76/184,052.40 = 90,746.48/x
  3. Step 3: Cross multiply
    133,261.76x = 184,052.40 × 90,746.48
  4. Step 4: Simplify right side
    133,261.76x = 16,702,107,435.55
  5. Step 5: Solve for x
    x = 16,702,107,435.55/133,261.76
  6. Step 6: Final answer
    x = 125,333.08

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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.