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Finding the Fourth Proportional to 108,356.44, 162,415.98 and 55,768.80

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Solution

The fourth proportional to 108,356.44, 162,415.98 and 55,768.80 is: 83,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,356.44 : 162,415.98 = 55,768.80 : x
  2. Step 2: Convert to fraction form
    108,356.44/162,415.98 = 55,768.80/x
  3. Step 3: Cross multiply
    108,356.44x = 162,415.98 × 55,768.80
  4. Step 4: Simplify right side
    108,356.44x = 9,057,744,305.42
  5. Step 5: Solve for x
    x = 9,057,744,305.42/108,356.44
  6. Step 6: Final answer
    x = 83,592.12

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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.