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Finding the Fourth Proportional to 207,869.76, 286,861.50 and 117,227.52

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Solution

The fourth proportional to 207,869.76, 286,861.50 and 117,227.52 is: 161,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,869.76 : 286,861.50 = 117,227.52 : x
  2. Step 2: Convert to fraction form
    207,869.76/286,861.50 = 117,227.52/x
  3. Step 3: Cross multiply
    207,869.76x = 286,861.50 × 117,227.52
  4. Step 4: Simplify right side
    207,869.76x = 33,628,062,228.48
  5. Step 5: Solve for x
    x = 33,628,062,228.48/207,869.76
  6. Step 6: Final answer
    x = 161,774.67

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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.