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Finding the Fourth Proportional to 168,038.64, 252,057.96 and 97,069.28

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Solution

The fourth proportional to 168,038.64, 252,057.96 and 97,069.28 is: 145,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,038.64 : 252,057.96 = 97,069.28 : x
  2. Step 2: Convert to fraction form
    168,038.64/252,057.96 = 97,069.28/x
  3. Step 3: Cross multiply
    168,038.64x = 252,057.96 × 97,069.28
  4. Step 4: Simplify right side
    168,038.64x = 24,467,083,435.18
  5. Step 5: Solve for x
    x = 24,467,083,435.18/168,038.64
  6. Step 6: Final answer
    x = 145,603.91

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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.