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Finding the Fourth Proportional to 243,443.80, 365,079.30 and 168,563.80

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Solution

The fourth proportional to 243,443.80, 365,079.30 and 168,563.80 is: 252,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,443.80 : 365,079.30 = 168,563.80 : x
  2. Step 2: Convert to fraction form
    243,443.80/365,079.30 = 168,563.80/x
  3. Step 3: Cross multiply
    243,443.80x = 365,079.30 × 168,563.80
  4. Step 4: Simplify right side
    243,443.80x = 61,539,154,109.34
  5. Step 5: Solve for x
    x = 61,539,154,109.34/243,443.80
  6. Step 6: Final answer
    x = 252,785.88

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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.