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Finding the Fourth Proportional to 172,947.60, 259,277.40 and 73,184.40

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Solution

The fourth proportional to 172,947.60, 259,277.40 and 73,184.40 is: 109,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,947.60 : 259,277.40 = 73,184.40 : x
  2. Step 2: Convert to fraction form
    172,947.60/259,277.40 = 73,184.40/x
  3. Step 3: Cross multiply
    172,947.60x = 259,277.40 × 73,184.40
  4. Step 4: Simplify right side
    172,947.60x = 18,975,060,952.56
  5. Step 5: Solve for x
    x = 18,975,060,952.56/172,947.60
  6. Step 6: Final answer
    x = 109,715.67

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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.