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Finding the Fourth Proportional to 369,097.67, 553,990.93 and 189,318.07

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Solution

The fourth proportional to 369,097.67, 553,990.93 and 189,318.07 is: 284,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,097.67 : 553,990.93 = 189,318.07 : x
  2. Step 2: Convert to fraction form
    369,097.67/553,990.93 = 189,318.07/x
  3. Step 3: Cross multiply
    369,097.67x = 553,990.93 × 189,318.07
  4. Step 4: Simplify right side
    369,097.67x = 104,880,493,884.30
  5. Step 5: Solve for x
    x = 104,880,493,884.30/369,097.67
  6. Step 6: Final answer
    x = 284,153.77

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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.