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Finding the Fourth Proportional to 164,012.80, 246,019.20 and 162,630.40

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Solution

The fourth proportional to 164,012.80, 246,019.20 and 162,630.40 is: 243,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,012.80 : 246,019.20 = 162,630.40 : x
  2. Step 2: Convert to fraction form
    164,012.80/246,019.20 = 162,630.40/x
  3. Step 3: Cross multiply
    164,012.80x = 246,019.20 × 162,630.40
  4. Step 4: Simplify right side
    164,012.80x = 40,010,200,903.68
  5. Step 5: Solve for x
    x = 40,010,200,903.68/164,012.80
  6. Step 6: Final answer
    x = 243,945.60

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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.