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Finding the Fourth Proportional to 157,653.23, 217,561.82 and 89,668.71

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Solution

The fourth proportional to 157,653.23, 217,561.82 and 89,668.71 is: 123,743.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,653.23 : 217,561.82 = 89,668.71 : x
  2. Step 2: Convert to fraction form
    157,653.23/217,561.82 = 89,668.71/x
  3. Step 3: Cross multiply
    157,653.23x = 217,561.82 × 89,668.71
  4. Step 4: Simplify right side
    157,653.23x = 19,508,487,296.31
  5. Step 5: Solve for x
    x = 19,508,487,296.31/157,653.23
  6. Step 6: Final answer
    x = 123,743.03

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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.