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Finding the Fourth Proportional to 210,544.52, 290,581.06 and 134,039.16

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Solution

The fourth proportional to 210,544.52, 290,581.06 and 134,039.16 is: 184,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,544.52 : 290,581.06 = 134,039.16 : x
  2. Step 2: Convert to fraction form
    210,544.52/290,581.06 = 134,039.16/x
  3. Step 3: Cross multiply
    210,544.52x = 290,581.06 × 134,039.16
  4. Step 4: Simplify right side
    210,544.52x = 38,949,241,194.31
  5. Step 5: Solve for x
    x = 38,949,241,194.31/210,544.52
  6. Step 6: Final answer
    x = 184,992.90

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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.