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Finding the Fourth Proportional to 357,436.50, 535,826.19 and 154,905.62

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Solution

The fourth proportional to 357,436.50, 535,826.19 and 154,905.62 is: 232,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,436.50 : 535,826.19 = 154,905.62 : x
  2. Step 2: Convert to fraction form
    357,436.50/535,826.19 = 154,905.62/x
  3. Step 3: Cross multiply
    357,436.50x = 535,826.19 × 154,905.62
  4. Step 4: Simplify right side
    357,436.50x = 83,002,485,495.06
  5. Step 5: Solve for x
    x = 83,002,485,495.06/357,436.50
  6. Step 6: Final answer
    x = 232,216.03

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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.