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Finding the Fourth Proportional to 133,530.62, 184,397.16 and 85,866.77

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Solution

The fourth proportional to 133,530.62, 184,397.16 and 85,866.77 is: 118,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,530.62 : 184,397.16 = 85,866.77 : x
  2. Step 2: Convert to fraction form
    133,530.62/184,397.16 = 85,866.77/x
  3. Step 3: Cross multiply
    133,530.62x = 184,397.16 × 85,866.77
  4. Step 4: Simplify right side
    133,530.62x = 15,833,587,604.39
  5. Step 5: Solve for x
    x = 15,833,587,604.39/133,530.62
  6. Step 6: Final answer
    x = 118,576.46

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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.