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Finding the Fourth Proportional to 357,787.59, 493,541.29 and 223,418.31

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Solution

The fourth proportional to 357,787.59, 493,541.29 and 223,418.31 is: 308,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,787.59 : 493,541.29 = 223,418.31 : x
  2. Step 2: Convert to fraction form
    357,787.59/493,541.29 = 223,418.31/x
  3. Step 3: Cross multiply
    357,787.59x = 493,541.29 × 223,418.31
  4. Step 4: Simplify right side
    357,787.59x = 110,266,160,927.02
  5. Step 5: Solve for x
    x = 110,266,160,927.02/357,787.59
  6. Step 6: Final answer
    x = 308,188.89

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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.