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Finding the Fourth Proportional to 60,701.60, 91,052.40 and 19,148.60

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Solution

The fourth proportional to 60,701.60, 91,052.40 and 19,148.60 is: 28,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,701.60 : 91,052.40 = 19,148.60 : x
  2. Step 2: Convert to fraction form
    60,701.60/91,052.40 = 19,148.60/x
  3. Step 3: Cross multiply
    60,701.60x = 91,052.40 × 19,148.60
  4. Step 4: Simplify right side
    60,701.60x = 1,743,525,986.64
  5. Step 5: Solve for x
    x = 1,743,525,986.64/60,701.60
  6. Step 6: Final answer
    x = 28,722.90

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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.