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Finding the Fourth Proportional to 54,254.70, 76,112.10 and 54,254.70

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Solution

The fourth proportional to 54,254.70, 76,112.10 and 54,254.70 is: 76,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,254.70 : 76,112.10 = 54,254.70 : x
  2. Step 2: Convert to fraction form
    54,254.70/76,112.10 = 54,254.70/x
  3. Step 3: Cross multiply
    54,254.70x = 76,112.10 × 54,254.70
  4. Step 4: Simplify right side
    54,254.70x = 4,129,439,151.87
  5. Step 5: Solve for x
    x = 4,129,439,151.87/54,254.70
  6. Step 6: Final answer
    x = 76,112.10

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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.