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Finding the Fourth Proportional to 317,225.97, 475,816.77 and 148,783.23

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Solution

The fourth proportional to 317,225.97, 475,816.77 and 148,783.23 is: 223,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,225.97 : 475,816.77 = 148,783.23 : x
  2. Step 2: Convert to fraction form
    317,225.97/475,816.77 = 148,783.23/x
  3. Step 3: Cross multiply
    317,225.97x = 475,816.77 × 148,783.23
  4. Step 4: Simplify right side
    317,225.97x = 70,793,555,928.77
  5. Step 5: Solve for x
    x = 70,793,555,928.77/317,225.97
  6. Step 6: Final answer
    x = 223,164.44

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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.