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Finding the Fourth Proportional to 335,419.35, 502,779.01 and 135,877.47

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Solution

The fourth proportional to 335,419.35, 502,779.01 and 135,877.47 is: 203,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,419.35 : 502,779.01 = 135,877.47 : x
  2. Step 2: Convert to fraction form
    335,419.35/502,779.01 = 135,877.47/x
  3. Step 3: Cross multiply
    335,419.35x = 502,779.01 × 135,877.47
  4. Step 4: Simplify right side
    335,419.35x = 68,316,339,847.90
  5. Step 5: Solve for x
    x = 68,316,339,847.90/335,419.35
  6. Step 6: Final answer
    x = 203,674.41

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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.