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Finding the Fourth Proportional to 263,492.96, 395,302.42 and 86,000.30

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Solution

The fourth proportional to 263,492.96, 395,302.42 and 86,000.30 is: 129,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,492.96 : 395,302.42 = 86,000.30 : x
  2. Step 2: Convert to fraction form
    263,492.96/395,302.42 = 86,000.30/x
  3. Step 3: Cross multiply
    263,492.96x = 395,302.42 × 86,000.30
  4. Step 4: Simplify right side
    263,492.96x = 33,996,126,710.73
  5. Step 5: Solve for x
    x = 33,996,126,710.73/263,492.96
  6. Step 6: Final answer
    x = 129,021.01

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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.