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Finding the Fourth Proportional to 360,842.72, 540,906.86 and 170,967.38

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Solution

The fourth proportional to 360,842.72, 540,906.86 and 170,967.38 is: 256,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,842.72 : 540,906.86 = 170,967.38 : x
  2. Step 2: Convert to fraction form
    360,842.72/540,906.86 = 170,967.38/x
  3. Step 3: Cross multiply
    360,842.72x = 540,906.86 × 170,967.38
  4. Step 4: Simplify right side
    360,842.72x = 92,477,426,401.11
  5. Step 5: Solve for x
    x = 92,477,426,401.11/360,842.72
  6. Step 6: Final answer
    x = 256,281.82

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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.