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Finding the Fourth Proportional to 353,095.47, 529,638.62 and 86,858.33

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Solution

The fourth proportional to 353,095.47, 529,638.62 and 86,858.33 is: 130,286.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,095.47 : 529,638.62 = 86,858.33 : x
  2. Step 2: Convert to fraction form
    353,095.47/529,638.62 = 86,858.33/x
  3. Step 3: Cross multiply
    353,095.47x = 529,638.62 × 86,858.33
  4. Step 4: Simplify right side
    353,095.47x = 46,003,522,954.22
  5. Step 5: Solve for x
    x = 46,003,522,954.22/353,095.47
  6. Step 6: Final answer
    x = 130,286.36

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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.