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Finding the Fourth Proportional to 85,158.28, 127,606.02 and 53,927.92

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Solution

The fourth proportional to 85,158.28, 127,606.02 and 53,927.92 is: 80,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,158.28 : 127,606.02 = 53,927.92 : x
  2. Step 2: Convert to fraction form
    85,158.28/127,606.02 = 53,927.92/x
  3. Step 3: Cross multiply
    85,158.28x = 127,606.02 × 53,927.92
  4. Step 4: Simplify right side
    85,158.28x = 6,881,527,238.08
  5. Step 5: Solve for x
    x = 6,881,527,238.08/85,158.28
  6. Step 6: Final answer
    x = 80,808.67

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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.