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Finding the Fourth Proportional to 54,350.40, 76,142.40 and 54,350.40

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Solution

The fourth proportional to 54,350.40, 76,142.40 and 54,350.40 is: 76,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,350.40 : 76,142.40 = 54,350.40 : x
  2. Step 2: Convert to fraction form
    54,350.40/76,142.40 = 54,350.40/x
  3. Step 3: Cross multiply
    54,350.40x = 76,142.40 × 54,350.40
  4. Step 4: Simplify right side
    54,350.40x = 4,138,369,896.96
  5. Step 5: Solve for x
    x = 4,138,369,896.96/54,350.40
  6. Step 6: Final answer
    x = 76,142.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.