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Finding the Fourth Proportional to 359,448.53, 496,040.61 and 198,303.51

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Solution

The fourth proportional to 359,448.53, 496,040.61 and 198,303.51 is: 273,659.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,448.53 : 496,040.61 = 198,303.51 : x
  2. Step 2: Convert to fraction form
    359,448.53/496,040.61 = 198,303.51/x
  3. Step 3: Cross multiply
    359,448.53x = 496,040.61 × 198,303.51
  4. Step 4: Simplify right side
    359,448.53x = 98,366,594,065.54
  5. Step 5: Solve for x
    x = 98,366,594,065.54/359,448.53
  6. Step 6: Final answer
    x = 273,659.75

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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.