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Finding the Fourth Proportional to 133,842.96, 184,701.72 and 72,588.24

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Solution

The fourth proportional to 133,842.96, 184,701.72 and 72,588.24 is: 100,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,842.96 : 184,701.72 = 72,588.24 : x
  2. Step 2: Convert to fraction form
    133,842.96/184,701.72 = 72,588.24/x
  3. Step 3: Cross multiply
    133,842.96x = 184,701.72 × 72,588.24
  4. Step 4: Simplify right side
    133,842.96x = 13,407,172,779.77
  5. Step 5: Solve for x
    x = 13,407,172,779.77/133,842.96
  6. Step 6: Final answer
    x = 100,170.92

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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.