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Finding the Fourth Proportional to 316,427.86, 474,581.31 and 94,811.86

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Solution

The fourth proportional to 316,427.86, 474,581.31 and 94,811.86 is: 142,199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,427.86 : 474,581.31 = 94,811.86 : x
  2. Step 2: Convert to fraction form
    316,427.86/474,581.31 = 94,811.86/x
  3. Step 3: Cross multiply
    316,427.86x = 474,581.31 × 94,811.86
  4. Step 4: Simplify right side
    316,427.86x = 44,995,937,493.34
  5. Step 5: Solve for x
    x = 44,995,937,493.34/316,427.86
  6. Step 6: Final answer
    x = 142,199.67

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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.