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Finding the Fourth Proportional to 127,683.40, 191,525.10 and 108,000.40

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Solution

The fourth proportional to 127,683.40, 191,525.10 and 108,000.40 is: 162,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,683.40 : 191,525.10 = 108,000.40 : x
  2. Step 2: Convert to fraction form
    127,683.40/191,525.10 = 108,000.40/x
  3. Step 3: Cross multiply
    127,683.40x = 191,525.10 × 108,000.40
  4. Step 4: Simplify right side
    127,683.40x = 20,684,787,410.04
  5. Step 5: Solve for x
    x = 20,684,787,410.04/127,683.40
  6. Step 6: Final answer
    x = 162,000.60

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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.