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Finding the Fourth Proportional to 133,758.51, 184,581.80 and 72,503.39

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Solution

The fourth proportional to 133,758.51, 184,581.80 and 72,503.39 is: 100,052.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,758.51 : 184,581.80 = 72,503.39 : x
  2. Step 2: Convert to fraction form
    133,758.51/184,581.80 = 72,503.39/x
  3. Step 3: Cross multiply
    133,758.51x = 184,581.80 × 72,503.39
  4. Step 4: Simplify right side
    133,758.51x = 13,382,806,232.30
  5. Step 5: Solve for x
    x = 13,382,806,232.30/133,758.51
  6. Step 6: Final answer
    x = 100,052.00

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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.