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Finding the Fourth Proportional to 63,011.64, 86,836.48 and 45,075.54

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Solution

The fourth proportional to 63,011.64, 86,836.48 and 45,075.54 is: 62,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,011.64 : 86,836.48 = 45,075.54 : x
  2. Step 2: Convert to fraction form
    63,011.64/86,836.48 = 45,075.54/x
  3. Step 3: Cross multiply
    63,011.64x = 86,836.48 × 45,075.54
  4. Step 4: Simplify right side
    63,011.64x = 3,914,201,227.70
  5. Step 5: Solve for x
    x = 3,914,201,227.70/63,011.64
  6. Step 6: Final answer
    x = 62,118.70

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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.