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Finding the Fourth Proportional to 113,980.36, 170,989.98 and 50,823.40

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Solution

The fourth proportional to 113,980.36, 170,989.98 and 50,823.40 is: 76,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,980.36 : 170,989.98 = 50,823.40 : x
  2. Step 2: Convert to fraction form
    113,980.36/170,989.98 = 50,823.40/x
  3. Step 3: Cross multiply
    113,980.36x = 170,989.98 × 50,823.40
  4. Step 4: Simplify right side
    113,980.36x = 8,690,292,149.53
  5. Step 5: Solve for x
    x = 8,690,292,149.53/113,980.36
  6. Step 6: Final answer
    x = 76,243.77

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1.5x scale

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.