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Finding the Fourth Proportional to 157,653.97, 217,567.28 and 89,680.79

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Solution

The fourth proportional to 157,653.97, 217,567.28 and 89,680.79 is: 123,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,653.97 : 217,567.28 = 89,680.79 : x
  2. Step 2: Convert to fraction form
    157,653.97/217,567.28 = 89,680.79/x
  3. Step 3: Cross multiply
    157,653.97x = 217,567.28 × 89,680.79
  4. Step 4: Simplify right side
    157,653.97x = 19,511,606,316.67
  5. Step 5: Solve for x
    x = 19,511,606,316.67/157,653.97
  6. Step 6: Final answer
    x = 123,762.23

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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.