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Finding the Fourth Proportional to 108,312.66, 162,458.70 and 33,412.68

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Solution

The fourth proportional to 108,312.66, 162,458.70 and 33,412.68 is: 50,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,312.66 : 162,458.70 = 33,412.68 : x
  2. Step 2: Convert to fraction form
    108,312.66/162,458.70 = 33,412.68/x
  3. Step 3: Cross multiply
    108,312.66x = 162,458.70 × 33,412.68
  4. Step 4: Simplify right side
    108,312.66x = 5,428,180,556.32
  5. Step 5: Solve for x
    x = 5,428,180,556.32/108,312.66
  6. Step 6: Final answer
    x = 50,115.85

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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.