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Finding the Fourth Proportional to 290,495.58, 435,619.53 and 110,550.30

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Solution

The fourth proportional to 290,495.58, 435,619.53 and 110,550.30 is: 165,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,495.58 : 435,619.53 = 110,550.30 : x
  2. Step 2: Convert to fraction form
    290,495.58/435,619.53 = 110,550.30/x
  3. Step 3: Cross multiply
    290,495.58x = 435,619.53 × 110,550.30
  4. Step 4: Simplify right side
    290,495.58x = 48,157,869,727.36
  5. Step 5: Solve for x
    x = 48,157,869,727.36/290,495.58
  6. Step 6: Final answer
    x = 165,778.32

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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.