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Finding the Fourth Proportional to 510,231.15, 765,457.43 and 155,235.94

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Solution

The fourth proportional to 510,231.15, 765,457.43 and 155,235.94 is: 232,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,231.15 : 765,457.43 = 155,235.94 : x
  2. Step 2: Convert to fraction form
    510,231.15/765,457.43 = 155,235.94/x
  3. Step 3: Cross multiply
    510,231.15x = 765,457.43 × 155,235.94
  4. Step 4: Simplify right side
    510,231.15x = 118,826,500,986.21
  5. Step 5: Solve for x
    x = 118,826,500,986.21/510,231.15
  6. Step 6: Final answer
    x = 232,887.59

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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.