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Finding the Fourth Proportional to 77,593.67, 107,075.81 and 45,331.28

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Solution

The fourth proportional to 77,593.67, 107,075.81 and 45,331.28 is: 62,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,593.67 : 107,075.81 = 45,331.28 : x
  2. Step 2: Convert to fraction form
    77,593.67/107,075.81 = 45,331.28/x
  3. Step 3: Cross multiply
    77,593.67x = 107,075.81 × 45,331.28
  4. Step 4: Simplify right side
    77,593.67x = 4,853,882,932.29
  5. Step 5: Solve for x
    x = 4,853,882,932.29/77,593.67
  6. Step 6: Final answer
    x = 62,555.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.