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Finding the Fourth Proportional to 124,347.63, 186,375.34 and 57,647.37

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Solution

The fourth proportional to 124,347.63, 186,375.34 and 57,647.37 is: 86,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,347.63 : 186,375.34 = 57,647.37 : x
  2. Step 2: Convert to fraction form
    124,347.63/186,375.34 = 57,647.37/x
  3. Step 3: Cross multiply
    124,347.63x = 186,375.34 × 57,647.37
  4. Step 4: Simplify right side
    124,347.63x = 10,744,048,039.74
  5. Step 5: Solve for x
    x = 10,744,048,039.74/124,347.63
  6. Step 6: Final answer
    x = 86,403.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.