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Finding the Fourth Proportional to 247,364.88, 370,839.54 and 172,263.30

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Solution

The fourth proportional to 247,364.88, 370,839.54 and 172,263.30 is: 258,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,364.88 : 370,839.54 = 172,263.30 : x
  2. Step 2: Convert to fraction form
    247,364.88/370,839.54 = 172,263.30/x
  3. Step 3: Cross multiply
    247,364.88x = 370,839.54 × 172,263.30
  4. Step 4: Simplify right side
    247,364.88x = 63,882,042,930.88
  5. Step 5: Solve for x
    x = 63,882,042,930.88/247,364.88
  6. Step 6: Final answer
    x = 258,250.25

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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.