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Finding the Fourth Proportional to 86,453.72, 119,306.16 and 46,709.72

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Solution

The fourth proportional to 86,453.72, 119,306.16 and 46,709.72 is: 64,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,453.72 : 119,306.16 = 46,709.72 : x
  2. Step 2: Convert to fraction form
    86,453.72/119,306.16 = 46,709.72/x
  3. Step 3: Cross multiply
    86,453.72x = 119,306.16 × 46,709.72
  4. Step 4: Simplify right side
    86,453.72x = 5,572,757,327.88
  5. Step 5: Solve for x
    x = 5,572,757,327.88/86,453.72
  6. Step 6: Final answer
    x = 64,459.43

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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.