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Finding the Fourth Proportional to 124,472.70, 186,741.72 and 48,572.46

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Solution

The fourth proportional to 124,472.70, 186,741.72 and 48,572.46 is: 72,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,472.70 : 186,741.72 = 48,572.46 : x
  2. Step 2: Convert to fraction form
    124,472.70/186,741.72 = 48,572.46/x
  3. Step 3: Cross multiply
    124,472.70x = 186,741.72 × 48,572.46
  4. Step 4: Simplify right side
    124,472.70x = 9,070,504,725.03
  5. Step 5: Solve for x
    x = 9,070,504,725.03/124,472.70
  6. Step 6: Final answer
    x = 72,871.44

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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.