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Finding the Fourth Proportional to 157,633.99, 217,540.15 and 86,017.94

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Solution

The fourth proportional to 157,633.99, 217,540.15 and 86,017.94 is: 118,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,633.99 : 217,540.15 = 86,017.94 : x
  2. Step 2: Convert to fraction form
    157,633.99/217,540.15 = 86,017.94/x
  3. Step 3: Cross multiply
    157,633.99x = 217,540.15 × 86,017.94
  4. Step 4: Simplify right side
    157,633.99x = 18,712,354,958.85
  5. Step 5: Solve for x
    x = 18,712,354,958.85/157,633.99
  6. Step 6: Final answer
    x = 118,707.62

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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.