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Finding the Fourth Proportional to 108,801.90, 163,200.69 and 71,596.98

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Solution

The fourth proportional to 108,801.90, 163,200.69 and 71,596.98 is: 107,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,801.90 : 163,200.69 = 71,596.98 : x
  2. Step 2: Convert to fraction form
    108,801.90/163,200.69 = 71,596.98/x
  3. Step 3: Cross multiply
    108,801.90x = 163,200.69 × 71,596.98
  4. Step 4: Simplify right side
    108,801.90x = 11,684,676,537.92
  5. Step 5: Solve for x
    x = 11,684,676,537.92/108,801.90
  6. Step 6: Final answer
    x = 107,394.05

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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.