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Finding the Fourth Proportional to 133,374.72, 184,073.86 and 87,472.92

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Solution

The fourth proportional to 133,374.72, 184,073.86 and 87,472.92 is: 120,723.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,374.72 : 184,073.86 = 87,472.92 : x
  2. Step 2: Convert to fraction form
    133,374.72/184,073.86 = 87,472.92/x
  3. Step 3: Cross multiply
    133,374.72x = 184,073.86 × 87,472.92
  4. Step 4: Simplify right side
    133,374.72x = 16,101,478,029.87
  5. Step 5: Solve for x
    x = 16,101,478,029.87/133,374.72
  6. Step 6: Final answer
    x = 120,723.61

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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.