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Finding the Fourth Proportional to 168,779.80, 253,129.20 and 97,548.40

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Solution

The fourth proportional to 168,779.80, 253,129.20 and 97,548.40 is: 146,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,779.80 : 253,129.20 = 97,548.40 : x
  2. Step 2: Convert to fraction form
    168,779.80/253,129.20 = 97,548.40/x
  3. Step 3: Cross multiply
    168,779.80x = 253,129.20 × 97,548.40
  4. Step 4: Simplify right side
    168,779.80x = 24,692,348,453.28
  5. Step 5: Solve for x
    x = 24,692,348,453.28/168,779.80
  6. Step 6: Final answer
    x = 146,299.19

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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.