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Finding the Fourth Proportional to 194,475.92, 291,646.40 and 68,113.40

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Solution

The fourth proportional to 194,475.92, 291,646.40 and 68,113.40 is: 102,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,475.92 : 291,646.40 = 68,113.40 : x
  2. Step 2: Convert to fraction form
    194,475.92/291,646.40 = 68,113.40/x
  3. Step 3: Cross multiply
    194,475.92x = 291,646.40 × 68,113.40
  4. Step 4: Simplify right side
    194,475.92x = 19,865,026,102.96
  5. Step 5: Solve for x
    x = 19,865,026,102.96/194,475.92
  6. Step 6: Final answer
    x = 102,146.46

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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.