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Finding the Fourth Proportional to 186,771.45, 278,700.45 and 166,642.56

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Solution

The fourth proportional to 186,771.45, 278,700.45 and 166,642.56 is: 248,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,771.45 : 278,700.45 = 166,642.56 : x
  2. Step 2: Convert to fraction form
    186,771.45/278,700.45 = 166,642.56/x
  3. Step 3: Cross multiply
    186,771.45x = 278,700.45 × 166,642.56
  4. Step 4: Simplify right side
    186,771.45x = 46,443,356,461.15
  5. Step 5: Solve for x
    x = 46,443,356,461.15/186,771.45
  6. Step 6: Final answer
    x = 248,664.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.