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Finding the Fourth Proportional to 58,978.60, 88,251.90 and 43,426.60

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Solution

The fourth proportional to 58,978.60, 88,251.90 and 43,426.60 is: 64,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,978.60 : 88,251.90 = 43,426.60 : x
  2. Step 2: Convert to fraction form
    58,978.60/88,251.90 = 43,426.60/x
  3. Step 3: Cross multiply
    58,978.60x = 88,251.90 × 43,426.60
  4. Step 4: Simplify right side
    58,978.60x = 3,832,479,960.54
  5. Step 5: Solve for x
    x = 3,832,479,960.54/58,978.60
  6. Step 6: Final answer
    x = 64,980.86

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