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Finding the Fourth Proportional to 173,069.46, 238,815.48 and 100,455.60

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Solution

The fourth proportional to 173,069.46, 238,815.48 and 100,455.60 is: 138,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,069.46 : 238,815.48 = 100,455.60 : x
  2. Step 2: Convert to fraction form
    173,069.46/238,815.48 = 100,455.60/x
  3. Step 3: Cross multiply
    173,069.46x = 238,815.48 × 100,455.60
  4. Step 4: Simplify right side
    173,069.46x = 23,990,352,332.69
  5. Step 5: Solve for x
    x = 23,990,352,332.69/173,069.46
  6. Step 6: Final answer
    x = 138,616.90

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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.