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Finding the Fourth Proportional to 290,570.74, 435,926.37 and 101,003.74

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Solution

The fourth proportional to 290,570.74, 435,926.37 and 101,003.74 is: 151,530.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,570.74 : 435,926.37 = 101,003.74 : x
  2. Step 2: Convert to fraction form
    290,570.74/435,926.37 = 101,003.74/x
  3. Step 3: Cross multiply
    290,570.74x = 435,926.37 × 101,003.74
  4. Step 4: Simplify right side
    290,570.74x = 44,030,193,734.62
  5. Step 5: Solve for x
    x = 44,030,193,734.62/290,570.74
  6. Step 6: Final answer
    x = 151,530.03

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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.