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Finding the Fourth Proportional to 599,813.80, 899,720.70 and 156,581.80

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Solution

The fourth proportional to 599,813.80, 899,720.70 and 156,581.80 is: 234,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,813.80 : 899,720.70 = 156,581.80 : x
  2. Step 2: Convert to fraction form
    599,813.80/899,720.70 = 156,581.80/x
  3. Step 3: Cross multiply
    599,813.80x = 899,720.70 × 156,581.80
  4. Step 4: Simplify right side
    599,813.80x = 140,879,886,703.26
  5. Step 5: Solve for x
    x = 140,879,886,703.26/599,813.80
  6. Step 6: Final answer
    x = 234,872.70

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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.