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Finding the Fourth Proportional to 368,053.38, 552,080.20 and 115,353.48

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Solution

The fourth proportional to 368,053.38, 552,080.20 and 115,353.48 is: 173,030.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,053.38 : 552,080.20 = 115,353.48 : x
  2. Step 2: Convert to fraction form
    368,053.38/552,080.20 = 115,353.48/x
  3. Step 3: Cross multiply
    368,053.38x = 552,080.20 × 115,353.48
  4. Step 4: Simplify right side
    368,053.38x = 63,684,371,097.54
  5. Step 5: Solve for x
    x = 63,684,371,097.54/368,053.38
  6. Step 6: Final answer
    x = 173,030.26

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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.