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Finding the Fourth Proportional to 447,063.96, 670,530.30 and 147,554.34

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Solution

The fourth proportional to 447,063.96, 670,530.30 and 147,554.34 is: 221,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,063.96 : 670,530.30 = 147,554.34 : x
  2. Step 2: Convert to fraction form
    447,063.96/670,530.30 = 147,554.34/x
  3. Step 3: Cross multiply
    447,063.96x = 670,530.30 × 147,554.34
  4. Step 4: Simplify right side
    447,063.96x = 98,939,655,866.50
  5. Step 5: Solve for x
    x = 98,939,655,866.50/447,063.96
  6. Step 6: Final answer
    x = 221,309.85

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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.