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Finding the Fourth Proportional to 357,470.50, 536,205.32 and 91,231.04

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Solution

The fourth proportional to 357,470.50, 536,205.32 and 91,231.04 is: 136,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,470.50 : 536,205.32 = 91,231.04 : x
  2. Step 2: Convert to fraction form
    357,470.50/536,205.32 = 91,231.04/x
  3. Step 3: Cross multiply
    357,470.50x = 536,205.32 × 91,231.04
  4. Step 4: Simplify right side
    357,470.50x = 48,918,569,881.49
  5. Step 5: Solve for x
    x = 48,918,569,881.49/357,470.50
  6. Step 6: Final answer
    x = 136,846.45

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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.