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Finding the Fourth Proportional to 186,455.56, 257,310.44 and 105,884.76

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Solution

The fourth proportional to 186,455.56, 257,310.44 and 105,884.76 is: 146,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,455.56 : 257,310.44 = 105,884.76 : x
  2. Step 2: Convert to fraction form
    186,455.56/257,310.44 = 105,884.76/x
  3. Step 3: Cross multiply
    186,455.56x = 257,310.44 × 105,884.76
  4. Step 4: Simplify right side
    186,455.56x = 27,245,254,184.89
  5. Step 5: Solve for x
    x = 27,245,254,184.89/186,455.56
  6. Step 6: Final answer
    x = 146,121.97

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1.5x scale

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.