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Finding the Fourth Proportional to 115,336.59, 159,164.24 and 65,035.23

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Solution

The fourth proportional to 115,336.59, 159,164.24 and 65,035.23 is: 89,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.59 : 159,164.24 = 65,035.23 : x
  2. Step 2: Convert to fraction form
    115,336.59/159,164.24 = 65,035.23/x
  3. Step 3: Cross multiply
    115,336.59x = 159,164.24 × 65,035.23
  4. Step 4: Simplify right side
    115,336.59x = 10,351,282,631.00
  5. Step 5: Solve for x
    x = 10,351,282,631.00/115,336.59
  6. Step 6: Final answer
    x = 89,748.47

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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.