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Finding the Fourth Proportional to 119,359.14, 164,719.80 and 65,648.28

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Solution

The fourth proportional to 119,359.14, 164,719.80 and 65,648.28 is: 90,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,359.14 : 164,719.80 = 65,648.28 : x
  2. Step 2: Convert to fraction form
    119,359.14/164,719.80 = 65,648.28/x
  3. Step 3: Cross multiply
    119,359.14x = 164,719.80 × 65,648.28
  4. Step 4: Simplify right side
    119,359.14x = 10,813,571,551.94
  5. Step 5: Solve for x
    x = 10,813,571,551.94/119,359.14
  6. Step 6: Final answer
    x = 90,596.93

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1.5x scale

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.