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Finding the Fourth Proportional to 58,075, 80,167.98 and 39,237.64

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Solution

The fourth proportional to 58,075, 80,167.98 and 39,237.64 is: 54,164.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,075 : 80,167.98 = 39,237.64 : x
  2. Step 2: Convert to fraction form
    58,075/80,167.98 = 39,237.64/x
  3. Step 3: Cross multiply
    58,075x = 80,167.98 × 39,237.64
  4. Step 4: Simplify right side
    58,075x = 3,145,602,338.77
  5. Step 5: Solve for x
    x = 3,145,602,338.77/58,075
  6. Step 6: Final answer
    x = 54,164.48

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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.