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Finding the Fourth Proportional to 230,658.80, 346,247.40 and 178,300.40

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Solution

The fourth proportional to 230,658.80, 346,247.40 and 178,300.40 is: 267,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,658.80 : 346,247.40 = 178,300.40 : x
  2. Step 2: Convert to fraction form
    230,658.80/346,247.40 = 178,300.40/x
  3. Step 3: Cross multiply
    230,658.80x = 346,247.40 × 178,300.40
  4. Step 4: Simplify right side
    230,658.80x = 61,736,049,918.96
  5. Step 5: Solve for x
    x = 61,736,049,918.96/230,658.80
  6. Step 6: Final answer
    x = 267,650.96

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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.