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Finding the Fourth Proportional to 119,321.16, 164,664.30 and 65,606.52

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Solution

The fourth proportional to 119,321.16, 164,664.30 and 65,606.52 is: 90,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,321.16 : 164,664.30 = 65,606.52 : x
  2. Step 2: Convert to fraction form
    119,321.16/164,664.30 = 65,606.52/x
  3. Step 3: Cross multiply
    119,321.16x = 164,664.30 × 65,606.52
  4. Step 4: Simplify right side
    119,321.16x = 10,803,051,691.24
  5. Step 5: Solve for x
    x = 10,803,051,691.24/119,321.16
  6. Step 6: Final answer
    x = 90,537.60

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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.