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Finding the Fourth Proportional to 368,645.04, 552,081.83 and 210,393.72

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Solution

The fourth proportional to 368,645.04, 552,081.83 and 210,393.72 is: 315,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,645.04 : 552,081.83 = 210,393.72 : x
  2. Step 2: Convert to fraction form
    368,645.04/552,081.83 = 210,393.72/x
  3. Step 3: Cross multiply
    368,645.04x = 552,081.83 × 210,393.72
  4. Step 4: Simplify right side
    368,645.04x = 116,154,548,906.14
  5. Step 5: Solve for x
    x = 116,154,548,906.14/368,645.04
  6. Step 6: Final answer
    x = 315,085.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.