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Finding the Fourth Proportional to 101,858.60, 140,557.92 and 56,534.96

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Solution

The fourth proportional to 101,858.60, 140,557.92 and 56,534.96 is: 78,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,858.60 : 140,557.92 = 56,534.96 : x
  2. Step 2: Convert to fraction form
    101,858.60/140,557.92 = 56,534.96/x
  3. Step 3: Cross multiply
    101,858.60x = 140,557.92 × 56,534.96
  4. Step 4: Simplify right side
    101,858.60x = 7,946,436,384.88
  5. Step 5: Solve for x
    x = 7,946,436,384.88/101,858.60
  6. Step 6: Final answer
    x = 78,014.39

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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.