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Finding the Fourth Proportional to 186,743.16, 279,641.64 and 115,804.32

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Solution

The fourth proportional to 186,743.16, 279,641.64 and 115,804.32 is: 173,413.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,743.16 : 279,641.64 = 115,804.32 : x
  2. Step 2: Convert to fraction form
    186,743.16/279,641.64 = 115,804.32/x
  3. Step 3: Cross multiply
    186,743.16x = 279,641.64 × 115,804.32
  4. Step 4: Simplify right side
    186,743.16x = 32,383,709,963.88
  5. Step 5: Solve for x
    x = 32,383,709,963.88/186,743.16
  6. Step 6: Final answer
    x = 173,413.10

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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.