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Finding the Fourth Proportional to 108,635.80, 162,953.70 and 106,886.20

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Solution

The fourth proportional to 108,635.80, 162,953.70 and 106,886.20 is: 160,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,635.80 : 162,953.70 = 106,886.20 : x
  2. Step 2: Convert to fraction form
    108,635.80/162,953.70 = 106,886.20/x
  3. Step 3: Cross multiply
    108,635.80x = 162,953.70 × 106,886.20
  4. Step 4: Simplify right side
    108,635.80x = 17,417,501,768.94
  5. Step 5: Solve for x
    x = 17,417,501,768.94/108,635.80
  6. Step 6: Final answer
    x = 160,329.30

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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.