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Finding the Fourth Proportional to 45,793.96, 68,700.80 and 14,203.40

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Solution

The fourth proportional to 45,793.96, 68,700.80 and 14,203.40 is: 21,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,793.96 : 68,700.80 = 14,203.40 : x
  2. Step 2: Convert to fraction form
    45,793.96/68,700.80 = 14,203.40/x
  3. Step 3: Cross multiply
    45,793.96x = 68,700.80 × 14,203.40
  4. Step 4: Simplify right side
    45,793.96x = 975,784,942.72
  5. Step 5: Solve for x
    x = 975,784,942.72/45,793.96
  6. Step 6: Final answer
    x = 21,308.16

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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.