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Finding the Fourth Proportional to 239,703.34, 359,461.55 and 89,861.95

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Solution

The fourth proportional to 239,703.34, 359,461.55 and 89,861.95 is: 134,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,703.34 : 359,461.55 = 89,861.95 : x
  2. Step 2: Convert to fraction form
    239,703.34/359,461.55 = 89,861.95/x
  3. Step 3: Cross multiply
    239,703.34x = 359,461.55 × 89,861.95
  4. Step 4: Simplify right side
    239,703.34x = 32,301,913,586.41
  5. Step 5: Solve for x
    x = 32,301,913,586.41/239,703.34
  6. Step 6: Final answer
    x = 134,757.88

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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.