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Finding the Fourth Proportional to 186,752.32, 280,145.58 and 74,405.32

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Solution

The fourth proportional to 186,752.32, 280,145.58 and 74,405.32 is: 111,614.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,752.32 : 280,145.58 = 74,405.32 : x
  2. Step 2: Convert to fraction form
    186,752.32/280,145.58 = 74,405.32/x
  3. Step 3: Cross multiply
    186,752.32x = 280,145.58 × 74,405.32
  4. Step 4: Simplify right side
    186,752.32x = 20,844,321,526.49
  5. Step 5: Solve for x
    x = 20,844,321,526.49/186,752.32
  6. Step 6: Final answer
    x = 111,614.79

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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.