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Finding the Fourth Proportional to 255,809.60, 383,887.20 and 166,846.40

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Solution

The fourth proportional to 255,809.60, 383,887.20 and 166,846.40 is: 250,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,809.60 : 383,887.20 = 166,846.40 : x
  2. Step 2: Convert to fraction form
    255,809.60/383,887.20 = 166,846.40/x
  3. Step 3: Cross multiply
    255,809.60x = 383,887.20 × 166,846.40
  4. Step 4: Simplify right side
    255,809.60x = 64,050,197,326.08
  5. Step 5: Solve for x
    x = 64,050,197,326.08/255,809.60
  6. Step 6: Final answer
    x = 250,382.31

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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.