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Finding the Fourth Proportional to 194,975.34, 292,479.42 and 68,602.28

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Solution

The fourth proportional to 194,975.34, 292,479.42 and 68,602.28 is: 102,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,975.34 : 292,479.42 = 68,602.28 : x
  2. Step 2: Convert to fraction form
    194,975.34/292,479.42 = 68,602.28/x
  3. Step 3: Cross multiply
    194,975.34x = 292,479.42 × 68,602.28
  4. Step 4: Simplify right side
    194,975.34x = 20,064,755,065.08
  5. Step 5: Solve for x
    x = 20,064,755,065.08/194,975.34
  6. Step 6: Final answer
    x = 102,909.19

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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.