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Finding the Fourth Proportional to 230,697.92, 318,385.10 and 140,033.09

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Solution

The fourth proportional to 230,697.92, 318,385.10 and 140,033.09 is: 193,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,697.92 : 318,385.10 = 140,033.09 : x
  2. Step 2: Convert to fraction form
    230,697.92/318,385.10 = 140,033.09/x
  3. Step 3: Cross multiply
    230,697.92x = 318,385.10 × 140,033.09
  4. Step 4: Simplify right side
    230,697.92x = 44,584,450,509.00
  5. Step 5: Solve for x
    x = 44,584,450,509.00/230,697.92
  6. Step 6: Final answer
    x = 193,259.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.