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Finding the Fourth Proportional to 115,604.40, 173,406.60 and 84,500.40

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Solution

The fourth proportional to 115,604.40, 173,406.60 and 84,500.40 is: 126,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,604.40 : 173,406.60 = 84,500.40 : x
  2. Step 2: Convert to fraction form
    115,604.40/173,406.60 = 84,500.40/x
  3. Step 3: Cross multiply
    115,604.40x = 173,406.60 × 84,500.40
  4. Step 4: Simplify right side
    115,604.40x = 14,652,927,062.64
  5. Step 5: Solve for x
    x = 14,652,927,062.64/115,604.40
  6. Step 6: Final answer
    x = 126,750.60

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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.