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Finding the Fourth Proportional to 297,186.88, 445,795.44 and 86,841.76

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Solution

The fourth proportional to 297,186.88, 445,795.44 and 86,841.76 is: 130,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,186.88 : 445,795.44 = 86,841.76 : x
  2. Step 2: Convert to fraction form
    297,186.88/445,795.44 = 86,841.76/x
  3. Step 3: Cross multiply
    297,186.88x = 445,795.44 × 86,841.76
  4. Step 4: Simplify right side
    297,186.88x = 38,713,660,609.57
  5. Step 5: Solve for x
    x = 38,713,660,609.57/297,186.88
  6. Step 6: Final answer
    x = 130,267.06

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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.