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Finding the Fourth Proportional to 260,605.22, 359,596.94 and 145,877.90

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Solution

The fourth proportional to 260,605.22, 359,596.94 and 145,877.90 is: 201,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,605.22 : 359,596.94 = 145,877.90 : x
  2. Step 2: Convert to fraction form
    260,605.22/359,596.94 = 145,877.90/x
  3. Step 3: Cross multiply
    260,605.22x = 359,596.94 × 145,877.90
  4. Step 4: Simplify right side
    260,605.22x = 52,457,243,926.25
  5. Step 5: Solve for x
    x = 52,457,243,926.25/260,605.22
  6. Step 6: Final answer
    x = 201,290.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.