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Finding the Fourth Proportional to 178,556.96, 246,412.32 and 97,979.78

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Solution

The fourth proportional to 178,556.96, 246,412.32 and 97,979.78 is: 135,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,556.96 : 246,412.32 = 97,979.78 : x
  2. Step 2: Convert to fraction form
    178,556.96/246,412.32 = 97,979.78/x
  3. Step 3: Cross multiply
    178,556.96x = 246,412.32 × 97,979.78
  4. Step 4: Simplify right side
    178,556.96x = 24,143,424,902.89
  5. Step 5: Solve for x
    x = 24,143,424,902.89/178,556.96
  6. Step 6: Final answer
    x = 135,214.14

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1.5x scale

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.