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Finding the Fourth Proportional to 252,483.76, 348,553.85 and 157,021.21

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Solution

The fourth proportional to 252,483.76, 348,553.85 and 157,021.21 is: 216,767.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,483.76 : 348,553.85 = 157,021.21 : x
  2. Step 2: Convert to fraction form
    252,483.76/348,553.85 = 157,021.21/x
  3. Step 3: Cross multiply
    252,483.76x = 348,553.85 × 157,021.21
  4. Step 4: Simplify right side
    252,483.76x = 54,730,347,277.16
  5. Step 5: Solve for x
    x = 54,730,347,277.16/252,483.76
  6. Step 6: Final answer
    x = 216,767.79

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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.