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Finding the Fourth Proportional to 357,669.83, 536,502.62 and 91,429.92

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Solution

The fourth proportional to 357,669.83, 536,502.62 and 91,429.92 is: 137,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,669.83 : 536,502.62 = 91,429.92 : x
  2. Step 2: Convert to fraction form
    357,669.83/536,502.62 = 91,429.92/x
  3. Step 3: Cross multiply
    357,669.83x = 536,502.62 × 91,429.92
  4. Step 4: Simplify right side
    357,669.83x = 49,052,391,169.24
  5. Step 5: Solve for x
    x = 49,052,391,169.24/357,669.83
  6. Step 6: Final answer
    x = 137,144.34

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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.