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Finding the Fourth Proportional to 188,713.08, 260,142.30 and 124,940.16

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Solution

The fourth proportional to 188,713.08, 260,142.30 and 124,940.16 is: 172,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,713.08 : 260,142.30 = 124,940.16 : x
  2. Step 2: Convert to fraction form
    188,713.08/260,142.30 = 124,940.16/x
  3. Step 3: Cross multiply
    188,713.08x = 260,142.30 × 124,940.16
  4. Step 4: Simplify right side
    188,713.08x = 32,502,220,584.77
  5. Step 5: Solve for x
    x = 32,502,220,584.77/188,713.08
  6. Step 6: Final answer
    x = 172,230.88

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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.