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Finding the Fourth Proportional to 168,012.80, 252,019.20 and 97,056.80

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Solution

The fourth proportional to 168,012.80, 252,019.20 and 97,056.80 is: 145,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,012.80 : 252,019.20 = 97,056.80 : x
  2. Step 2: Convert to fraction form
    168,012.80/252,019.20 = 97,056.80/x
  3. Step 3: Cross multiply
    168,012.80x = 252,019.20 × 97,056.80
  4. Step 4: Simplify right side
    168,012.80x = 24,460,177,090.56
  5. Step 5: Solve for x
    x = 24,460,177,090.56/168,012.80
  6. Step 6: Final answer
    x = 145,585.20

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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.