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Finding the Fourth Proportional to 101,245.60, 139,695.06 and 58,778.92

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Solution

The fourth proportional to 101,245.60, 139,695.06 and 58,778.92 is: 81,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.60 : 139,695.06 = 58,778.92 : x
  2. Step 2: Convert to fraction form
    101,245.60/139,695.06 = 58,778.92/x
  3. Step 3: Cross multiply
    101,245.60x = 139,695.06 × 58,778.92
  4. Step 4: Simplify right side
    101,245.60x = 8,211,124,756.14
  5. Step 5: Solve for x
    x = 8,211,124,756.14/101,245.60
  6. Step 6: Final answer
    x = 81,101.05

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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.