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Finding the Fourth Proportional to 608,403.72, 912,535.86 and 159,167.94

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Solution

The fourth proportional to 608,403.72, 912,535.86 and 159,167.94 is: 238,733.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,403.72 : 912,535.86 = 159,167.94 : x
  2. Step 2: Convert to fraction form
    608,403.72/912,535.86 = 159,167.94/x
  3. Step 3: Cross multiply
    608,403.72x = 912,535.86 × 159,167.94
  4. Step 4: Simplify right side
    608,403.72x = 145,246,453,012.33
  5. Step 5: Solve for x
    x = 145,246,453,012.33/608,403.72
  6. Step 6: Final answer
    x = 238,733.67

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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.