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Finding the Fourth Proportional to 269,218.70, 403,828.05 and 91,925.90

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Solution

The fourth proportional to 269,218.70, 403,828.05 and 91,925.90 is: 137,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,218.70 : 403,828.05 = 91,925.90 : x
  2. Step 2: Convert to fraction form
    269,218.70/403,828.05 = 91,925.90/x
  3. Step 3: Cross multiply
    269,218.70x = 403,828.05 × 91,925.90
  4. Step 4: Simplify right side
    269,218.70x = 37,122,256,941.50
  5. Step 5: Solve for x
    x = 37,122,256,941.50/269,218.70
  6. Step 6: Final answer
    x = 137,888.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.