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Finding the Fourth Proportional to 119,539.85, 164,959.67 and 68,516.01

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Solution

The fourth proportional to 119,539.85, 164,959.67 and 68,516.01 is: 94,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,539.85 : 164,959.67 = 68,516.01 : x
  2. Step 2: Convert to fraction form
    119,539.85/164,959.67 = 68,516.01/x
  3. Step 3: Cross multiply
    119,539.85x = 164,959.67 × 68,516.01
  4. Step 4: Simplify right side
    119,539.85x = 11,302,378,570.61
  5. Step 5: Solve for x
    x = 11,302,378,570.61/119,539.85
  6. Step 6: Final answer
    x = 94,549.05

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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.