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Finding the Fourth Proportional to 101,768.04, 140,348.02 and 63,531.12

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Solution

The fourth proportional to 101,768.04, 140,348.02 and 63,531.12 is: 87,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,768.04 : 140,348.02 = 63,531.12 : x
  2. Step 2: Convert to fraction form
    101,768.04/140,348.02 = 63,531.12/x
  3. Step 3: Cross multiply
    101,768.04x = 140,348.02 × 63,531.12
  4. Step 4: Simplify right side
    101,768.04x = 8,916,466,900.38
  5. Step 5: Solve for x
    x = 8,916,466,900.38/101,768.04
  6. Step 6: Final answer
    x = 87,615.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.