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Finding the Fourth Proportional to 252,484.26, 348,554.54 and 157,021.71

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Solution

The fourth proportional to 252,484.26, 348,554.54 and 157,021.71 is: 216,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,484.26 : 348,554.54 = 157,021.71 : x
  2. Step 2: Convert to fraction form
    252,484.26/348,554.54 = 157,021.71/x
  3. Step 3: Cross multiply
    252,484.26x = 348,554.54 × 157,021.71
  4. Step 4: Simplify right side
    252,484.26x = 54,730,629,113.95
  5. Step 5: Solve for x
    x = 54,730,629,113.95/252,484.26
  6. Step 6: Final answer
    x = 216,768.48

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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.