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Finding the Fourth Proportional to 69,842.72, 104,470.46 and 58,877.64

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Solution

The fourth proportional to 69,842.72, 104,470.46 and 58,877.64 is: 88,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,842.72 : 104,470.46 = 58,877.64 : x
  2. Step 2: Convert to fraction form
    69,842.72/104,470.46 = 58,877.64/x
  3. Step 3: Cross multiply
    69,842.72x = 104,470.46 × 58,877.64
  4. Step 4: Simplify right side
    69,842.72x = 6,150,974,134.51
  5. Step 5: Solve for x
    x = 6,150,974,134.51/69,842.72
  6. Step 6: Final answer
    x = 88,068.94

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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.