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Finding the Fourth Proportional to 58,935.20, 88,273.20 and 57,639.20

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Solution

The fourth proportional to 58,935.20, 88,273.20 and 57,639.20 is: 86,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,935.20 : 88,273.20 = 57,639.20 : x
  2. Step 2: Convert to fraction form
    58,935.20/88,273.20 = 57,639.20/x
  3. Step 3: Cross multiply
    58,935.20x = 88,273.20 × 57,639.20
  4. Step 4: Simplify right side
    58,935.20x = 5,087,996,629.44
  5. Step 5: Solve for x
    x = 5,087,996,629.44/58,935.20
  6. Step 6: Final answer
    x = 86,332.05

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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.