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Finding the Fourth Proportional to 350,428.20, 525,719.10 and 113,730.60

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Solution

The fourth proportional to 350,428.20, 525,719.10 and 113,730.60 is: 170,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,428.20 : 525,719.10 = 113,730.60 : x
  2. Step 2: Convert to fraction form
    350,428.20/525,719.10 = 113,730.60/x
  3. Step 3: Cross multiply
    350,428.20x = 525,719.10 × 113,730.60
  4. Step 4: Simplify right side
    350,428.20x = 59,790,348,674.46
  5. Step 5: Solve for x
    x = 59,790,348,674.46/350,428.20
  6. Step 6: Final answer
    x = 170,620.83

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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.