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Finding the Fourth Proportional to 186,464.60, 279,696.90 and 61,805.60

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Solution

The fourth proportional to 186,464.60, 279,696.90 and 61,805.60 is: 92,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,464.60 : 279,696.90 = 61,805.60 : x
  2. Step 2: Convert to fraction form
    186,464.60/279,696.90 = 61,805.60/x
  3. Step 3: Cross multiply
    186,464.60x = 279,696.90 × 61,805.60
  4. Step 4: Simplify right side
    186,464.60x = 17,286,834,722.64
  5. Step 5: Solve for x
    x = 17,286,834,722.64/186,464.60
  6. Step 6: Final answer
    x = 92,708.40

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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.