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Finding the Fourth Proportional to 368,663.94, 552,995.40 and 115,966.62

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Solution

The fourth proportional to 368,663.94, 552,995.40 and 115,966.62 is: 173,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,663.94 : 552,995.40 = 115,966.62 : x
  2. Step 2: Convert to fraction form
    368,663.94/552,995.40 = 115,966.62/x
  3. Step 3: Cross multiply
    368,663.94x = 552,995.40 × 115,966.62
  4. Step 4: Simplify right side
    368,663.94x = 64,129,007,413.55
  5. Step 5: Solve for x
    x = 64,129,007,413.55/368,663.94
  6. Step 6: Final answer
    x = 173,949.77

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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.