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Finding the Fourth Proportional to 113,740.75, 156,911.52 and 65,966.41

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Solution

The fourth proportional to 113,740.75, 156,911.52 and 65,966.41 is: 91,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,740.75 : 156,911.52 = 65,966.41 : x
  2. Step 2: Convert to fraction form
    113,740.75/156,911.52 = 65,966.41/x
  3. Step 3: Cross multiply
    113,740.75x = 156,911.52 × 65,966.41
  4. Step 4: Simplify right side
    113,740.75x = 10,350,889,662.04
  5. Step 5: Solve for x
    x = 10,350,889,662.04/113,740.75
  6. Step 6: Final answer
    x = 91,004.23

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1.5x scale

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.