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Finding the Fourth Proportional to 118,045.72, 177,100.17 and 51,491.26

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Solution

The fourth proportional to 118,045.72, 177,100.17 and 51,491.26 is: 77,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,045.72 : 177,100.17 = 51,491.26 : x
  2. Step 2: Convert to fraction form
    118,045.72/177,100.17 = 51,491.26/x
  3. Step 3: Cross multiply
    118,045.72x = 177,100.17 × 51,491.26
  4. Step 4: Simplify right side
    118,045.72x = 9,119,110,899.51
  5. Step 5: Solve for x
    x = 9,119,110,899.51/118,045.72
  6. Step 6: Final answer
    x = 77,250.67

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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.