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Finding the Fourth Proportional to 194,783.62, 292,192.08 and 68,412.86

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Solution

The fourth proportional to 194,783.62, 292,192.08 and 68,412.86 is: 102,625.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,783.62 : 292,192.08 = 68,412.86 : x
  2. Step 2: Convert to fraction form
    194,783.62/292,192.08 = 68,412.86/x
  3. Step 3: Cross multiply
    194,783.62x = 292,192.08 × 68,412.86
  4. Step 4: Simplify right side
    194,783.62x = 19,989,695,862.15
  5. Step 5: Solve for x
    x = 19,989,695,862.15/194,783.62
  6. Step 6: Final answer
    x = 102,625.14

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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.