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Finding the Fourth Proportional to 283,051.23, 424,581.18 and 72,684.51

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Solution

The fourth proportional to 283,051.23, 424,581.18 and 72,684.51 is: 109,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,051.23 : 424,581.18 = 72,684.51 : x
  2. Step 2: Convert to fraction form
    283,051.23/424,581.18 = 72,684.51/x
  3. Step 3: Cross multiply
    283,051.23x = 424,581.18 × 72,684.51
  4. Step 4: Simplify right side
    283,051.23x = 30,860,475,023.52
  5. Step 5: Solve for x
    x = 30,860,475,023.52/283,051.23
  6. Step 6: Final answer
    x = 109,027.88

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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.