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Finding the Fourth Proportional to 157,969.79, 236,969.54 and 58,131.89

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Solution

The fourth proportional to 157,969.79, 236,969.54 and 58,131.89 is: 87,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,969.79 : 236,969.54 = 58,131.89 : x
  2. Step 2: Convert to fraction form
    157,969.79/236,969.54 = 58,131.89/x
  3. Step 3: Cross multiply
    157,969.79x = 236,969.54 × 58,131.89
  4. Step 4: Simplify right side
    157,969.79x = 13,775,486,941.97
  5. Step 5: Solve for x
    x = 13,775,486,941.97/157,969.79
  6. Step 6: Final answer
    x = 87,203.30

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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.