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Finding the Fourth Proportional to 248,181.18, 372,130.53 and 169,390.86

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Solution

The fourth proportional to 248,181.18, 372,130.53 and 169,390.86 is: 253,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,181.18 : 372,130.53 = 169,390.86 : x
  2. Step 2: Convert to fraction form
    248,181.18/372,130.53 = 169,390.86/x
  3. Step 3: Cross multiply
    248,181.18x = 372,130.53 × 169,390.86
  4. Step 4: Simplify right side
    248,181.18x = 63,035,510,508.96
  5. Step 5: Solve for x
    x = 63,035,510,508.96/248,181.18
  6. Step 6: Final answer
    x = 253,989.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.