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Finding the Fourth Proportional to 173,639.80, 260,459.70 and 114,542.20

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Solution

The fourth proportional to 173,639.80, 260,459.70 and 114,542.20 is: 171,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,639.80 : 260,459.70 = 114,542.20 : x
  2. Step 2: Convert to fraction form
    173,639.80/260,459.70 = 114,542.20/x
  3. Step 3: Cross multiply
    173,639.80x = 260,459.70 × 114,542.20
  4. Step 4: Simplify right side
    173,639.80x = 29,833,627,049.34
  5. Step 5: Solve for x
    x = 29,833,627,049.34/173,639.80
  6. Step 6: Final answer
    x = 171,813.30

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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.