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Finding the Fourth Proportional to 124,392.85, 171,662.19 and 70,677.94

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Solution

The fourth proportional to 124,392.85, 171,662.19 and 70,677.94 is: 97,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,392.85 : 171,662.19 = 70,677.94 : x
  2. Step 2: Convert to fraction form
    124,392.85/171,662.19 = 70,677.94/x
  3. Step 3: Cross multiply
    124,392.85x = 171,662.19 × 70,677.94
  4. Step 4: Simplify right side
    124,392.85x = 12,132,729,965.09
  5. Step 5: Solve for x
    x = 12,132,729,965.09/124,392.85
  6. Step 6: Final answer
    x = 97,535.59

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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.