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Finding the Fourth Proportional to 345,088.86, 475,815.15 and 236,245.56

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Solution

The fourth proportional to 345,088.86, 475,815.15 and 236,245.56 is: 325,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,088.86 : 475,815.15 = 236,245.56 : x
  2. Step 2: Convert to fraction form
    345,088.86/475,815.15 = 236,245.56/x
  3. Step 3: Cross multiply
    345,088.86x = 475,815.15 × 236,245.56
  4. Step 4: Simplify right side
    345,088.86x = 112,409,216,568.23
  5. Step 5: Solve for x
    x = 112,409,216,568.23/345,088.86
  6. Step 6: Final answer
    x = 325,739.92

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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.