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Finding the Fourth Proportional to 357,885.80, 536,827.35 and 91,645.96

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Solution

The fourth proportional to 357,885.80, 536,827.35 and 91,645.96 is: 137,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,885.80 : 536,827.35 = 91,645.96 : x
  2. Step 2: Convert to fraction form
    357,885.80/536,827.35 = 91,645.96/x
  3. Step 3: Cross multiply
    357,885.80x = 536,827.35 × 91,645.96
  4. Step 4: Simplify right side
    357,885.80x = 49,198,057,845.01
  5. Step 5: Solve for x
    x = 49,198,057,845.01/357,885.80
  6. Step 6: Final answer
    x = 137,468.59

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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.