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Finding the Fourth Proportional to 187,673.16, 280,803.47 and 131,622.68

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Solution

The fourth proportional to 187,673.16, 280,803.47 and 131,622.68 is: 196,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,673.16 : 280,803.47 = 131,622.68 : x
  2. Step 2: Convert to fraction form
    187,673.16/280,803.47 = 131,622.68/x
  3. Step 3: Cross multiply
    187,673.16x = 280,803.47 × 131,622.68
  4. Step 4: Simplify right side
    187,673.16x = 36,960,103,212.57
  5. Step 5: Solve for x
    x = 36,960,103,212.57/187,673.16
  6. Step 6: Final answer
    x = 196,938.67

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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.