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Finding the Fourth Proportional to 186,759.16, 279,665.64 and 115,820.32

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Solution

The fourth proportional to 186,759.16, 279,665.64 and 115,820.32 is: 173,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,759.16 : 279,665.64 = 115,820.32 : x
  2. Step 2: Convert to fraction form
    186,759.16/279,665.64 = 115,820.32/x
  3. Step 3: Cross multiply
    186,759.16x = 279,665.64 × 115,820.32
  4. Step 4: Simplify right side
    186,759.16x = 32,390,963,917.80
  5. Step 5: Solve for x
    x = 32,390,963,917.80/186,759.16
  6. Step 6: Final answer
    x = 173,437.08

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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.