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Finding the Fourth Proportional to 157,649.67, 236,467.89 and 73,380.87

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Solution

The fourth proportional to 157,649.67, 236,467.89 and 73,380.87 is: 110,068.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,649.67 : 236,467.89 = 73,380.87 : x
  2. Step 2: Convert to fraction form
    157,649.67/236,467.89 = 73,380.87/x
  3. Step 3: Cross multiply
    157,649.67x = 236,467.89 × 73,380.87
  4. Step 4: Simplify right side
    157,649.67x = 17,352,219,495.26
  5. Step 5: Solve for x
    x = 17,352,219,495.26/157,649.67
  6. Step 6: Final answer
    x = 110,068.23

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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.