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Finding the Fourth Proportional to 186,310.62, 257,074.80 and 105,741.54

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Solution

The fourth proportional to 186,310.62, 257,074.80 and 105,741.54 is: 145,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,310.62 : 257,074.80 = 105,741.54 : x
  2. Step 2: Convert to fraction form
    186,310.62/257,074.80 = 105,741.54/x
  3. Step 3: Cross multiply
    186,310.62x = 257,074.80 × 105,741.54
  4. Step 4: Simplify right side
    186,310.62x = 27,183,485,247.19
  5. Step 5: Solve for x
    x = 27,183,485,247.19/186,310.62
  6. Step 6: Final answer
    x = 145,904.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.