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Finding the Fourth Proportional to 240,621.60, 360,932.40 and 74,409.60

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Solution

The fourth proportional to 240,621.60, 360,932.40 and 74,409.60 is: 111,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,621.60 : 360,932.40 = 74,409.60 : x
  2. Step 2: Convert to fraction form
    240,621.60/360,932.40 = 74,409.60/x
  3. Step 3: Cross multiply
    240,621.60x = 360,932.40 × 74,409.60
  4. Step 4: Simplify right side
    240,621.60x = 26,856,835,511.04
  5. Step 5: Solve for x
    x = 26,856,835,511.04/240,621.60
  6. Step 6: Final answer
    x = 111,614.40

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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.