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Finding the Fourth Proportional to 191,163.40, 286,350.90 and 112,037.80

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Solution

The fourth proportional to 191,163.40, 286,350.90 and 112,037.80 is: 167,825.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,163.40 : 286,350.90 = 112,037.80 : x
  2. Step 2: Convert to fraction form
    191,163.40/286,350.90 = 112,037.80/x
  3. Step 3: Cross multiply
    191,163.40x = 286,350.90 × 112,037.80
  4. Step 4: Simplify right side
    191,163.40x = 32,082,124,864.02
  5. Step 5: Solve for x
    x = 32,082,124,864.02/191,163.40
  6. Step 6: Final answer
    x = 167,825.67

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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.