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Finding the Fourth Proportional to 186,479.76, 279,915.29 and 165,268.19

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Solution

The fourth proportional to 186,479.76, 279,915.29 and 165,268.19 is: 248,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,479.76 : 279,915.29 = 165,268.19 : x
  2. Step 2: Convert to fraction form
    186,479.76/279,915.29 = 165,268.19/x
  3. Step 3: Cross multiply
    186,479.76x = 279,915.29 × 165,268.19
  4. Step 4: Simplify right side
    186,479.76x = 46,261,093,502.38
  5. Step 5: Solve for x
    x = 46,261,093,502.38/186,479.76
  6. Step 6: Final answer
    x = 248,075.68

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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.