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Finding the Fourth Proportional to 251,790.80, 353,129.20 and 251,790.80

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Solution

The fourth proportional to 251,790.80, 353,129.20 and 251,790.80 is: 353,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,790.80 : 353,129.20 = 251,790.80 : x
  2. Step 2: Convert to fraction form
    251,790.80/353,129.20 = 251,790.80/x
  3. Step 3: Cross multiply
    251,790.80x = 353,129.20 × 251,790.80
  4. Step 4: Simplify right side
    251,790.80x = 88,914,683,771.36
  5. Step 5: Solve for x
    x = 88,914,683,771.36/251,790.80
  6. Step 6: Final answer
    x = 353,129.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.