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Finding the Fourth Proportional to 188,547.28, 260,194.44 and 103,668.88

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Solution

The fourth proportional to 188,547.28, 260,194.44 and 103,668.88 is: 143,062.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,547.28 : 260,194.44 = 103,668.88 : x
  2. Step 2: Convert to fraction form
    188,547.28/260,194.44 = 103,668.88/x
  3. Step 3: Cross multiply
    188,547.28x = 260,194.44 × 103,668.88
  4. Step 4: Simplify right side
    188,547.28x = 26,974,066,177.03
  5. Step 5: Solve for x
    x = 26,974,066,177.03/188,547.28
  6. Step 6: Final answer
    x = 143,062.61

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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.