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Finding the Fourth Proportional to 435,869.96, 653,842.56 and 120,326.92

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Solution

The fourth proportional to 435,869.96, 653,842.56 and 120,326.92 is: 180,500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,869.96 : 653,842.56 = 120,326.92 : x
  2. Step 2: Convert to fraction form
    435,869.96/653,842.56 = 120,326.92/x
  3. Step 3: Cross multiply
    435,869.96x = 653,842.56 × 120,326.92
  4. Step 4: Simplify right side
    435,869.96x = 78,674,861,409.72
  5. Step 5: Solve for x
    x = 78,674,861,409.72/435,869.96
  6. Step 6: Final answer
    x = 180,500.77

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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.