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Finding the Fourth Proportional to 350,012.60, 524,414.10 and 162,639.80

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Solution

The fourth proportional to 350,012.60, 524,414.10 and 162,639.80 is: 243,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,012.60 : 524,414.10 = 162,639.80 : x
  2. Step 2: Convert to fraction form
    350,012.60/524,414.10 = 162,639.80/x
  3. Step 3: Cross multiply
    350,012.60x = 524,414.10 × 162,639.80
  4. Step 4: Simplify right side
    350,012.60x = 85,290,604,341.18
  5. Step 5: Solve for x
    x = 85,290,604,341.18/350,012.60
  6. Step 6: Final answer
    x = 243,678.67

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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.