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Finding the Fourth Proportional to 189,007.20, 283,219.20 and 163,929.60

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Solution

The fourth proportional to 189,007.20, 283,219.20 and 163,929.60 is: 245,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.20 : 283,219.20 = 163,929.60 : x
  2. Step 2: Convert to fraction form
    189,007.20/283,219.20 = 163,929.60/x
  3. Step 3: Cross multiply
    189,007.20x = 283,219.20 × 163,929.60
  4. Step 4: Simplify right side
    189,007.20x = 46,428,010,168.32
  5. Step 5: Solve for x
    x = 46,428,010,168.32/189,007.20
  6. Step 6: Final answer
    x = 245,641.49

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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.