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Finding the Fourth Proportional to 188,661.06, 260,459.85 and 125,084.97

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Solution

The fourth proportional to 188,661.06, 260,459.85 and 125,084.97 is: 172,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,661.06 : 260,459.85 = 125,084.97 : x
  2. Step 2: Convert to fraction form
    188,661.06/260,459.85 = 125,084.97/x
  3. Step 3: Cross multiply
    188,661.06x = 260,459.85 × 125,084.97
  4. Step 4: Simplify right side
    188,661.06x = 32,579,612,523.45
  5. Step 5: Solve for x
    x = 32,579,612,523.45/188,661.06
  6. Step 6: Final answer
    x = 172,688.59

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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.