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Finding the Fourth Proportional to 119,423.33, 178,938.17 and 69,362.90

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Solution

The fourth proportional to 119,423.33, 178,938.17 and 69,362.90 is: 103,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,423.33 : 178,938.17 = 69,362.90 : x
  2. Step 2: Convert to fraction form
    119,423.33/178,938.17 = 69,362.90/x
  3. Step 3: Cross multiply
    119,423.33x = 178,938.17 × 69,362.90
  4. Step 4: Simplify right side
    119,423.33x = 12,411,670,752.53
  5. Step 5: Solve for x
    x = 12,411,670,752.53/119,423.33
  6. Step 6: Final answer
    x = 103,930.03

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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.