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Finding the Fourth Proportional to 108,720.69, 150,000.50 and 62,774.33

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Solution

The fourth proportional to 108,720.69, 150,000.50 and 62,774.33 is: 86,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,720.69 : 150,000.50 = 62,774.33 : x
  2. Step 2: Convert to fraction form
    108,720.69/150,000.50 = 62,774.33/x
  3. Step 3: Cross multiply
    108,720.69x = 150,000.50 × 62,774.33
  4. Step 4: Simplify right side
    108,720.69x = 9,416,179,823.29
  5. Step 5: Solve for x
    x = 9,416,179,823.29/108,720.69
  6. Step 6: Final answer
    x = 86,608.90

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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.