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Finding the Fourth Proportional to 168,617.16, 253,050.48 and 79,870.86

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Solution

The fourth proportional to 168,617.16, 253,050.48 and 79,870.86 is: 119,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,617.16 : 253,050.48 = 79,870.86 : x
  2. Step 2: Convert to fraction form
    168,617.16/253,050.48 = 79,870.86/x
  3. Step 3: Cross multiply
    168,617.16x = 253,050.48 × 79,870.86
  4. Step 4: Simplify right side
    168,617.16x = 20,211,359,461.01
  5. Step 5: Solve for x
    x = 20,211,359,461.01/168,617.16
  6. Step 6: Final answer
    x = 119,865.38

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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.