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Finding the Fourth Proportional to 368,779.20, 552,888 and 169,156.32

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Solution

The fourth proportional to 368,779.20, 552,888 and 169,156.32 is: 253,605.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,779.20 : 552,888 = 169,156.32 : x
  2. Step 2: Convert to fraction form
    368,779.20/552,888 = 169,156.32/x
  3. Step 3: Cross multiply
    368,779.20x = 552,888 × 169,156.32
  4. Step 4: Simplify right side
    368,779.20x = 93,524,499,452.16
  5. Step 5: Solve for x
    x = 93,524,499,452.16/368,779.20
  6. Step 6: Final answer
    x = 253,605.68

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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.