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Finding the Fourth Proportional to 54,190.80, 75,970.80 and 54,190.80

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Solution

The fourth proportional to 54,190.80, 75,970.80 and 54,190.80 is: 75,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,190.80 : 75,970.80 = 54,190.80 : x
  2. Step 2: Convert to fraction form
    54,190.80/75,970.80 = 54,190.80/x
  3. Step 3: Cross multiply
    54,190.80x = 75,970.80 × 54,190.80
  4. Step 4: Simplify right side
    54,190.80x = 4,116,918,428.64
  5. Step 5: Solve for x
    x = 4,116,918,428.64/54,190.80
  6. Step 6: Final answer
    x = 75,970.80

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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.