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Finding the Fourth Proportional to 525,661.36, 788,207.96 and 165,764.32

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Solution

The fourth proportional to 525,661.36, 788,207.96 and 165,764.32 is: 248,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,661.36 : 788,207.96 = 165,764.32 : x
  2. Step 2: Convert to fraction form
    525,661.36/788,207.96 = 165,764.32/x
  3. Step 3: Cross multiply
    525,661.36x = 788,207.96 × 165,764.32
  4. Step 4: Simplify right side
    525,661.36x = 130,656,756,507.99
  5. Step 5: Solve for x
    x = 130,656,756,507.99/525,661.36
  6. Step 6: Final answer
    x = 248,556.90

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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.