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Finding the Fourth Proportional to 119,487.96, 164,874.08 and 68,491.30

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Solution

The fourth proportional to 119,487.96, 164,874.08 and 68,491.30 is: 94,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,487.96 : 164,874.08 = 68,491.30 : x
  2. Step 2: Convert to fraction form
    119,487.96/164,874.08 = 68,491.30/x
  3. Step 3: Cross multiply
    119,487.96x = 164,874.08 × 68,491.30
  4. Step 4: Simplify right side
    119,487.96x = 11,292,440,075.50
  5. Step 5: Solve for x
    x = 11,292,440,075.50/119,487.96
  6. Step 6: Final answer
    x = 94,506.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.