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Finding the Fourth Proportional to 115,065.01, 158,751.66 and 67,284.53

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Solution

The fourth proportional to 115,065.01, 158,751.66 and 67,284.53 is: 92,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,065.01 : 158,751.66 = 67,284.53 : x
  2. Step 2: Convert to fraction form
    115,065.01/158,751.66 = 67,284.53/x
  3. Step 3: Cross multiply
    115,065.01x = 158,751.66 × 67,284.53
  4. Step 4: Simplify right side
    115,065.01x = 10,681,530,829.82
  5. Step 5: Solve for x
    x = 10,681,530,829.82/115,065.01
  6. Step 6: Final answer
    x = 92,830.40

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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.