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Finding the Fourth Proportional to 108,042.16, 162,135.72 and 37,921.68

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Solution

The fourth proportional to 108,042.16, 162,135.72 and 37,921.68 is: 56,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,042.16 : 162,135.72 = 37,921.68 : x
  2. Step 2: Convert to fraction form
    108,042.16/162,135.72 = 37,921.68/x
  3. Step 3: Cross multiply
    108,042.16x = 162,135.72 × 37,921.68
  4. Step 4: Simplify right side
    108,042.16x = 6,148,458,890.41
  5. Step 5: Solve for x
    x = 6,148,458,890.41/108,042.16
  6. Step 6: Final answer
    x = 56,907.96

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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.