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Finding the Fourth Proportional to 368,652.47, 552,978.12 and 115,955.15

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Solution

The fourth proportional to 368,652.47, 552,978.12 and 115,955.15 is: 173,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,652.47 : 552,978.12 = 115,955.15 : x
  2. Step 2: Convert to fraction form
    368,652.47/552,978.12 = 115,955.15/x
  3. Step 3: Cross multiply
    368,652.47x = 552,978.12 × 115,955.15
  4. Step 4: Simplify right side
    368,652.47x = 64,120,660,851.32
  5. Step 5: Solve for x
    x = 64,120,660,851.32/368,652.47
  6. Step 6: Final answer
    x = 173,932.54

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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.