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Finding the Fourth Proportional to 125,176.96, 187,765.72 and 30,406.72

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Solution

The fourth proportional to 125,176.96, 187,765.72 and 30,406.72 is: 45,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,176.96 : 187,765.72 = 30,406.72 : x
  2. Step 2: Convert to fraction form
    125,176.96/187,765.72 = 30,406.72/x
  3. Step 3: Cross multiply
    125,176.96x = 187,765.72 × 30,406.72
  4. Step 4: Simplify right side
    125,176.96x = 5,709,339,673.64
  5. Step 5: Solve for x
    x = 5,709,339,673.64/125,176.96
  6. Step 6: Final answer
    x = 45,610.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.