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Finding the Fourth Proportional to 188,908.26, 260,615.16 and 112,412.04

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Solution

The fourth proportional to 188,908.26, 260,615.16 and 112,412.04 is: 155,082.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,908.26 : 260,615.16 = 112,412.04 : x
  2. Step 2: Convert to fraction form
    188,908.26/260,615.16 = 112,412.04/x
  3. Step 3: Cross multiply
    188,908.26x = 260,615.16 × 112,412.04
  4. Step 4: Simplify right side
    188,908.26x = 29,296,281,790.53
  5. Step 5: Solve for x
    x = 29,296,281,790.53/188,908.26
  6. Step 6: Final answer
    x = 155,082.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.