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Finding the Fourth Proportional to 150,636.67, 207,886.14 and 86,109.23

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Solution

The fourth proportional to 150,636.67, 207,886.14 and 86,109.23 is: 118,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,636.67 : 207,886.14 = 86,109.23 : x
  2. Step 2: Convert to fraction form
    150,636.67/207,886.14 = 86,109.23/x
  3. Step 3: Cross multiply
    150,636.67x = 207,886.14 × 86,109.23
  4. Step 4: Simplify right side
    150,636.67x = 17,900,915,443.07
  5. Step 5: Solve for x
    x = 17,900,915,443.07/150,636.67
  6. Step 6: Final answer
    x = 118,835.04

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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.