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Finding the Fourth Proportional to 59,395.56, 81,868.26 and 47,437.80

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Solution

The fourth proportional to 59,395.56, 81,868.26 and 47,437.80 is: 65,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,395.56 : 81,868.26 = 47,437.80 : x
  2. Step 2: Convert to fraction form
    59,395.56/81,868.26 = 47,437.80/x
  3. Step 3: Cross multiply
    59,395.56x = 81,868.26 × 47,437.80
  4. Step 4: Simplify right side
    59,395.56x = 3,883,650,144.23
  5. Step 5: Solve for x
    x = 3,883,650,144.23/59,395.56
  6. Step 6: Final answer
    x = 65,386.20

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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.