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Finding the Fourth Proportional to 156,556.16, 234,862.32 and 73,448

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Solution

The fourth proportional to 156,556.16, 234,862.32 and 73,448 is: 110,185.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,556.16 : 234,862.32 = 73,448 : x
  2. Step 2: Convert to fraction form
    156,556.16/234,862.32 = 73,448/x
  3. Step 3: Cross multiply
    156,556.16x = 234,862.32 × 73,448
  4. Step 4: Simplify right side
    156,556.16x = 17,250,167,679.36
  5. Step 5: Solve for x
    x = 17,250,167,679.36/156,556.16
  6. Step 6: Final answer
    x = 110,185.17

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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.