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Finding the Fourth Proportional to 188,673.90, 260,376.74 and 108,116.98

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Solution

The fourth proportional to 188,673.90, 260,376.74 and 108,116.98 is: 149,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,673.90 : 260,376.74 = 108,116.98 : x
  2. Step 2: Convert to fraction form
    188,673.90/260,376.74 = 108,116.98/x
  3. Step 3: Cross multiply
    188,673.90x = 260,376.74 × 108,116.98
  4. Step 4: Simplify right side
    188,673.90x = 28,151,146,250.46
  5. Step 5: Solve for x
    x = 28,151,146,250.46/188,673.90
  6. Step 6: Final answer
    x = 149,205.30

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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.