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Finding the Fourth Proportional to 119,328.96, 164,674.58 and 65,617.42

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Solution

The fourth proportional to 119,328.96, 164,674.58 and 65,617.42 is: 90,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,328.96 : 164,674.58 = 65,617.42 : x
  2. Step 2: Convert to fraction form
    119,328.96/164,674.58 = 65,617.42/x
  3. Step 3: Cross multiply
    119,328.96x = 164,674.58 × 65,617.42
  4. Step 4: Simplify right side
    119,328.96x = 10,805,521,079.18
  5. Step 5: Solve for x
    x = 10,805,521,079.18/119,328.96
  6. Step 6: Final answer
    x = 90,552.38

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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.