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Finding the Fourth Proportional to 133,466.76, 184,171.59 and 90,358.56

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Solution

The fourth proportional to 133,466.76, 184,171.59 and 90,358.56 is: 124,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,466.76 : 184,171.59 = 90,358.56 : x
  2. Step 2: Convert to fraction form
    133,466.76/184,171.59 = 90,358.56/x
  3. Step 3: Cross multiply
    133,466.76x = 184,171.59 × 90,358.56
  4. Step 4: Simplify right side
    133,466.76x = 16,641,479,665.31
  5. Step 5: Solve for x
    x = 16,641,479,665.31/133,466.76
  6. Step 6: Final answer
    x = 124,686.32

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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.