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Finding the Fourth Proportional to 131,130.96, 180,958.86 and 73,765.92

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Solution

The fourth proportional to 131,130.96, 180,958.86 and 73,765.92 is: 101,795.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,130.96 : 180,958.86 = 73,765.92 : x
  2. Step 2: Convert to fraction form
    131,130.96/180,958.86 = 73,765.92/x
  3. Step 3: Cross multiply
    131,130.96x = 180,958.86 × 73,765.92
  4. Step 4: Simplify right side
    131,130.96x = 13,348,596,790.05
  5. Step 5: Solve for x
    x = 13,348,596,790.05/131,130.96
  6. Step 6: Final answer
    x = 101,795.92

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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.