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Finding the Fourth Proportional to 353,781.19, 530,741.82 and 101,063.86

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Solution

The fourth proportional to 353,781.19, 530,741.82 and 101,063.86 is: 151,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,781.19 : 530,741.82 = 101,063.86 : x
  2. Step 2: Convert to fraction form
    353,781.19/530,741.82 = 101,063.86/x
  3. Step 3: Cross multiply
    353,781.19x = 530,741.82 × 101,063.86
  4. Step 4: Simplify right side
    353,781.19x = 53,638,816,992.63
  5. Step 5: Solve for x
    x = 53,638,816,992.63/353,781.19
  6. Step 6: Final answer
    x = 151,615.80

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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.