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Finding the Fourth Proportional to 357,967.33, 493,981.63 and 196,812.79

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Solution

The fourth proportional to 357,967.33, 493,981.63 and 196,812.79 is: 271,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,967.33 : 493,981.63 = 196,812.79 : x
  2. Step 2: Convert to fraction form
    357,967.33/493,981.63 = 196,812.79/x
  3. Step 3: Cross multiply
    357,967.33x = 493,981.63 × 196,812.79
  4. Step 4: Simplify right side
    357,967.33x = 97,221,902,809.05
  5. Step 5: Solve for x
    x = 97,221,902,809.05/357,967.33
  6. Step 6: Final answer
    x = 271,594.35

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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.