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Finding the Fourth Proportional to 101,925.63, 140,660.87 and 56,604.33

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Solution

The fourth proportional to 101,925.63, 140,660.87 and 56,604.33 is: 78,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,925.63 : 140,660.87 = 56,604.33 : x
  2. Step 2: Convert to fraction form
    101,925.63/140,660.87 = 56,604.33/x
  3. Step 3: Cross multiply
    101,925.63x = 140,660.87 × 56,604.33
  4. Step 4: Simplify right side
    101,925.63x = 7,962,014,020.55
  5. Step 5: Solve for x
    x = 7,962,014,020.55/101,925.63
  6. Step 6: Final answer
    x = 78,115.92

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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.