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Finding the Fourth Proportional to 357,367.56, 536,038.20 and 91,125.60

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Solution

The fourth proportional to 357,367.56, 536,038.20 and 91,125.60 is: 136,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,367.56 : 536,038.20 = 91,125.60 : x
  2. Step 2: Convert to fraction form
    357,367.56/536,038.20 = 91,125.60/x
  3. Step 3: Cross multiply
    357,367.56x = 536,038.20 × 91,125.60
  4. Step 4: Simplify right side
    357,367.56x = 48,846,802,597.92
  5. Step 5: Solve for x
    x = 48,846,802,597.92/357,367.56
  6. Step 6: Final answer
    x = 136,685.05

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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.