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Finding the Fourth Proportional to 115,117.52, 158,873.55 and 67,368.02

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Solution

The fourth proportional to 115,117.52, 158,873.55 and 67,368.02 is: 92,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,117.52 : 158,873.55 = 67,368.02 : x
  2. Step 2: Convert to fraction form
    115,117.52/158,873.55 = 67,368.02/x
  3. Step 3: Cross multiply
    115,117.52x = 158,873.55 × 67,368.02
  4. Step 4: Simplify right side
    115,117.52x = 10,702,996,493.87
  5. Step 5: Solve for x
    x = 10,702,996,493.87/115,117.52
  6. Step 6: Final answer
    x = 92,974.52

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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.