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Finding the Fourth Proportional to 580,048.13, 870,072.26 and 180,721.10

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Solution

The fourth proportional to 580,048.13, 870,072.26 and 180,721.10 is: 271,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,048.13 : 870,072.26 = 180,721.10 : x
  2. Step 2: Convert to fraction form
    580,048.13/870,072.26 = 180,721.10/x
  3. Step 3: Cross multiply
    580,048.13x = 870,072.26 × 180,721.10
  4. Step 4: Simplify right side
    580,048.13x = 157,240,415,906.69
  5. Step 5: Solve for x
    x = 157,240,415,906.69/580,048.13
  6. Step 6: Final answer
    x = 271,081.67

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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.