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Finding the Fourth Proportional to 133,052.72, 183,255.72 and 115,148.24

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Solution

The fourth proportional to 133,052.72, 183,255.72 and 115,148.24 is: 158,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,052.72 : 183,255.72 = 115,148.24 : x
  2. Step 2: Convert to fraction form
    133,052.72/183,255.72 = 115,148.24/x
  3. Step 3: Cross multiply
    133,052.72x = 183,255.72 × 115,148.24
  4. Step 4: Simplify right side
    133,052.72x = 21,101,573,627.93
  5. Step 5: Solve for x
    x = 21,101,573,627.93/133,052.72
  6. Step 6: Final answer
    x = 158,595.58

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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.