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Finding the Fourth Proportional to 189,572.32, 284,158.68 and 63,178.84

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Solution

The fourth proportional to 189,572.32, 284,158.68 and 63,178.84 is: 94,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,572.32 : 284,158.68 = 63,178.84 : x
  2. Step 2: Convert to fraction form
    189,572.32/284,158.68 = 63,178.84/x
  3. Step 3: Cross multiply
    189,572.32x = 284,158.68 × 63,178.84
  4. Step 4: Simplify right side
    189,572.32x = 17,952,815,778.33
  5. Step 5: Solve for x
    x = 17,952,815,778.33/189,572.32
  6. Step 6: Final answer
    x = 94,701.67

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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.