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Finding the Fourth Proportional to 133,630.34, 184,409.56 and 72,376.34

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Solution

The fourth proportional to 133,630.34, 184,409.56 and 72,376.34 is: 99,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,630.34 : 184,409.56 = 72,376.34 : x
  2. Step 2: Convert to fraction form
    133,630.34/184,409.56 = 72,376.34/x
  3. Step 3: Cross multiply
    133,630.34x = 184,409.56 × 72,376.34
  4. Step 4: Simplify right side
    133,630.34x = 13,346,889,013.81
  5. Step 5: Solve for x
    x = 13,346,889,013.81/133,630.34
  6. Step 6: Final answer
    x = 99,879.18

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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.