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Finding the Fourth Proportional to 525,717.21, 788,651.93 and 165,765.89

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Solution

The fourth proportional to 525,717.21, 788,651.93 and 165,765.89 is: 248,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,717.21 : 788,651.93 = 165,765.89 : x
  2. Step 2: Convert to fraction form
    525,717.21/788,651.93 = 165,765.89/x
  3. Step 3: Cross multiply
    525,717.21x = 788,651.93 × 165,765.89
  4. Step 4: Simplify right side
    525,717.21x = 130,731,586,763.41
  5. Step 5: Solve for x
    x = 130,731,586,763.41/525,717.21
  6. Step 6: Final answer
    x = 248,672.83

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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.