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Finding the Fourth Proportional to 163,912.80, 245,480.40 and 163,912.80

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Solution

The fourth proportional to 163,912.80, 245,480.40 and 163,912.80 is: 245,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,912.80 : 245,480.40 = 163,912.80 : x
  2. Step 2: Convert to fraction form
    163,912.80/245,480.40 = 163,912.80/x
  3. Step 3: Cross multiply
    163,912.80x = 245,480.40 × 163,912.80
  4. Step 4: Simplify right side
    163,912.80x = 40,237,379,709.12
  5. Step 5: Solve for x
    x = 40,237,379,709.12/163,912.80
  6. Step 6: Final answer
    x = 245,480.40

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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.