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Finding the Fourth Proportional to 200,779.25, 301,152.47 and 67,656.56

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Solution

The fourth proportional to 200,779.25, 301,152.47 and 67,656.56 is: 101,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,779.25 : 301,152.47 = 67,656.56 : x
  2. Step 2: Convert to fraction form
    200,779.25/301,152.47 = 67,656.56/x
  3. Step 3: Cross multiply
    200,779.25x = 301,152.47 × 67,656.56
  4. Step 4: Simplify right side
    200,779.25x = 20,374,938,311.66
  5. Step 5: Solve for x
    x = 20,374,938,311.66/200,779.25
  6. Step 6: Final answer
    x = 101,479.31

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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.