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Finding the Fourth Proportional to 108,628.30, 162,748.05 and 93,076.30

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Solution

The fourth proportional to 108,628.30, 162,748.05 and 93,076.30 is: 139,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,628.30 : 162,748.05 = 93,076.30 : x
  2. Step 2: Convert to fraction form
    108,628.30/162,748.05 = 93,076.30/x
  3. Step 3: Cross multiply
    108,628.30x = 162,748.05 × 93,076.30
  4. Step 4: Simplify right side
    108,628.30x = 15,147,986,326.22
  5. Step 5: Solve for x
    x = 15,147,986,326.22/108,628.30
  6. Step 6: Final answer
    x = 139,447.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.