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Finding the Fourth Proportional to 357,472.50, 536,208.32 and 91,233.05

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Solution

The fourth proportional to 357,472.50, 536,208.32 and 91,233.05 is: 136,849.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,472.50 : 536,208.32 = 91,233.05 : x
  2. Step 2: Convert to fraction form
    357,472.50/536,208.32 = 91,233.05/x
  3. Step 3: Cross multiply
    357,472.50x = 536,208.32 × 91,233.05
  4. Step 4: Simplify right side
    357,472.50x = 48,919,917,331.77
  5. Step 5: Solve for x
    x = 48,919,917,331.77/357,472.50
  6. Step 6: Final answer
    x = 136,849.46

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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.