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Finding the Fourth Proportional to 108,527.70, 162,791.55 and 66,537.30

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Solution

The fourth proportional to 108,527.70, 162,791.55 and 66,537.30 is: 99,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,527.70 : 162,791.55 = 66,537.30 : x
  2. Step 2: Convert to fraction form
    108,527.70/162,791.55 = 66,537.30/x
  3. Step 3: Cross multiply
    108,527.70x = 162,791.55 × 66,537.30
  4. Step 4: Simplify right side
    108,527.70x = 10,831,710,199.82
  5. Step 5: Solve for x
    x = 10,831,710,199.82/108,527.70
  6. Step 6: Final answer
    x = 99,805.95

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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.