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Finding the Fourth Proportional to 188,609.16, 260,283.80 and 108,043.71

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Solution

The fourth proportional to 188,609.16, 260,283.80 and 108,043.71 is: 149,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,609.16 : 260,283.80 = 108,043.71 : x
  2. Step 2: Convert to fraction form
    188,609.16/260,283.80 = 108,043.71/x
  3. Step 3: Cross multiply
    188,609.16x = 260,283.80 × 108,043.71
  4. Step 4: Simplify right side
    188,609.16x = 28,122,026,864.68
  5. Step 5: Solve for x
    x = 28,122,026,864.68/188,609.16
  6. Step 6: Final answer
    x = 149,102.13

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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.