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Finding the Fourth Proportional to 108,539.90, 162,809.85 and 97,826.30

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Solution

The fourth proportional to 108,539.90, 162,809.85 and 97,826.30 is: 146,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,539.90 : 162,809.85 = 97,826.30 : x
  2. Step 2: Convert to fraction form
    108,539.90/162,809.85 = 97,826.30/x
  3. Step 3: Cross multiply
    108,539.90x = 162,809.85 × 97,826.30
  4. Step 4: Simplify right side
    108,539.90x = 15,927,085,229.06
  5. Step 5: Solve for x
    x = 15,927,085,229.06/108,539.90
  6. Step 6: Final answer
    x = 146,739.45

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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.