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Finding the Fourth Proportional to 172,866.98, 238,538.94 and 96,378.84

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Solution

The fourth proportional to 172,866.98, 238,538.94 and 96,378.84 is: 132,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,866.98 : 238,538.94 = 96,378.84 : x
  2. Step 2: Convert to fraction form
    172,866.98/238,538.94 = 96,378.84/x
  3. Step 3: Cross multiply
    172,866.98x = 238,538.94 × 96,378.84
  4. Step 4: Simplify right side
    172,866.98x = 22,990,106,332.03
  5. Step 5: Solve for x
    x = 22,990,106,332.03/172,866.98
  6. Step 6: Final answer
    x = 132,993.05

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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.