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Finding the Fourth Proportional to 186,485.76, 279,529.44 and 74,010.24

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Solution

The fourth proportional to 186,485.76, 279,529.44 and 74,010.24 is: 110,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,485.76 : 279,529.44 = 74,010.24 : x
  2. Step 2: Convert to fraction form
    186,485.76/279,529.44 = 74,010.24/x
  3. Step 3: Cross multiply
    186,485.76x = 279,529.44 × 74,010.24
  4. Step 4: Simplify right side
    186,485.76x = 20,688,040,941.47
  5. Step 5: Solve for x
    x = 20,688,040,941.47/186,485.76
  6. Step 6: Final answer
    x = 110,936.30

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1.5x scale

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.