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Finding the Fourth Proportional to 357,873.12, 493,875.96 and 196,740.48

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Solution

The fourth proportional to 357,873.12, 493,875.96 and 196,740.48 is: 271,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,873.12 : 493,875.96 = 196,740.48 : x
  2. Step 2: Convert to fraction form
    357,873.12/493,875.96 = 196,740.48/x
  3. Step 3: Cross multiply
    357,873.12x = 493,875.96 × 196,740.48
  4. Step 4: Simplify right side
    357,873.12x = 97,165,393,430.86
  5. Step 5: Solve for x
    x = 97,165,393,430.86/357,873.12
  6. Step 6: Final answer
    x = 271,507.94

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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.