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Finding the Fourth Proportional to 153,759.66, 230,725.61 and 65,079.54

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Solution

The fourth proportional to 153,759.66, 230,725.61 and 65,079.54 is: 97,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,759.66 : 230,725.61 = 65,079.54 : x
  2. Step 2: Convert to fraction form
    153,759.66/230,725.61 = 65,079.54/x
  3. Step 3: Cross multiply
    153,759.66x = 230,725.61 × 65,079.54
  4. Step 4: Simplify right side
    153,759.66x = 15,015,516,239.62
  5. Step 5: Solve for x
    x = 15,015,516,239.62/153,759.66
  6. Step 6: Final answer
    x = 97,655.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.