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Finding the Fourth Proportional to 101,885.94, 140,595.54 and 56,560.34

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Solution

The fourth proportional to 101,885.94, 140,595.54 and 56,560.34 is: 78,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,885.94 : 140,595.54 = 56,560.34 : x
  2. Step 2: Convert to fraction form
    101,885.94/140,595.54 = 56,560.34/x
  3. Step 3: Cross multiply
    101,885.94x = 140,595.54 × 56,560.34
  4. Step 4: Simplify right side
    101,885.94x = 7,952,131,544.88
  5. Step 5: Solve for x
    x = 7,952,131,544.88/101,885.94
  6. Step 6: Final answer
    x = 78,049.35

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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.