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Finding the Fourth Proportional to 157,971.52, 236,969.52 and 52,790.86

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Solution

The fourth proportional to 157,971.52, 236,969.52 and 52,790.86 is: 79,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,971.52 : 236,969.52 = 52,790.86 : x
  2. Step 2: Convert to fraction form
    157,971.52/236,969.52 = 52,790.86/x
  3. Step 3: Cross multiply
    157,971.52x = 236,969.52 × 52,790.86
  4. Step 4: Simplify right side
    157,971.52x = 12,509,824,754.59
  5. Step 5: Solve for x
    x = 12,509,824,754.59/157,971.52
  6. Step 6: Final answer
    x = 79,190.38

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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.