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Finding the Fourth Proportional to 116,362.56, 160,568.68 and 65,381.16

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Solution

The fourth proportional to 116,362.56, 160,568.68 and 65,381.16 is: 90,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,362.56 : 160,568.68 = 65,381.16 : x
  2. Step 2: Convert to fraction form
    116,362.56/160,568.68 = 65,381.16/x
  3. Step 3: Cross multiply
    116,362.56x = 160,568.68 × 65,381.16
  4. Step 4: Simplify right side
    116,362.56x = 10,498,166,558.07
  5. Step 5: Solve for x
    x = 10,498,166,558.07/116,362.56
  6. Step 6: Final answer
    x = 90,219.45

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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.