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Finding the Fourth Proportional to 170,885.61, 235,749.83 and 114,315.21

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Solution

The fourth proportional to 170,885.61, 235,749.83 and 114,315.21 is: 157,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,885.61 : 235,749.83 = 114,315.21 : x
  2. Step 2: Convert to fraction form
    170,885.61/235,749.83 = 114,315.21/x
  3. Step 3: Cross multiply
    170,885.61x = 235,749.83 × 114,315.21
  4. Step 4: Simplify right side
    170,885.61x = 26,949,790,752.34
  5. Step 5: Solve for x
    x = 26,949,790,752.34/170,885.61
  6. Step 6: Final answer
    x = 157,706.61

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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.