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Finding the Fourth Proportional to 101,938.64, 140,665.02 and 59,521.77

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Solution

The fourth proportional to 101,938.64, 140,665.02 and 59,521.77 is: 82,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,938.64 : 140,665.02 = 59,521.77 : x
  2. Step 2: Convert to fraction form
    101,938.64/140,665.02 = 59,521.77/x
  3. Step 3: Cross multiply
    101,938.64x = 140,665.02 × 59,521.77
  4. Step 4: Simplify right side
    101,938.64x = 8,372,630,967.49
  5. Step 5: Solve for x
    x = 8,372,630,967.49/101,938.64
  6. Step 6: Final answer
    x = 82,134.03

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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.