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Finding the Fourth Proportional to 357,885.56, 536,787.77 and 91,648.01

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Solution

The fourth proportional to 357,885.56, 536,787.77 and 91,648.01 is: 137,461.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,885.56 : 536,787.77 = 91,648.01 : x
  2. Step 2: Convert to fraction form
    357,885.56/536,787.77 = 91,648.01/x
  3. Step 3: Cross multiply
    357,885.56x = 536,787.77 × 91,648.01
  4. Step 4: Simplify right side
    357,885.56x = 49,195,527,770.66
  5. Step 5: Solve for x
    x = 49,195,527,770.66/357,885.56
  6. Step 6: Final answer
    x = 137,461.62

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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.