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Finding the Fourth Proportional to 357,922.71, 536,871.77 and 91,685.54

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Solution

The fourth proportional to 357,922.71, 536,871.77 and 91,685.54 is: 137,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,922.71 : 536,871.77 = 91,685.54 : x
  2. Step 2: Convert to fraction form
    357,922.71/536,871.77 = 91,685.54/x
  3. Step 3: Cross multiply
    357,922.71x = 536,871.77 × 91,685.54
  4. Step 4: Simplify right side
    357,922.71x = 49,223,375,000.42
  5. Step 5: Solve for x
    x = 49,223,375,000.42/357,922.71
  6. Step 6: Final answer
    x = 137,525.15

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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.