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Finding the Fourth Proportional to 187,085.70, 280,628.55 and 167,256.90

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Solution

The fourth proportional to 187,085.70, 280,628.55 and 167,256.90 is: 250,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,085.70 : 280,628.55 = 167,256.90 : x
  2. Step 2: Convert to fraction form
    187,085.70/280,628.55 = 167,256.90/x
  3. Step 3: Cross multiply
    187,085.70x = 280,628.55 × 167,256.90
  4. Step 4: Simplify right side
    187,085.70x = 46,937,061,324.50
  5. Step 5: Solve for x
    x = 46,937,061,324.50/187,085.70
  6. Step 6: Final answer
    x = 250,885.35

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Similar ratio
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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.