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Finding the Fourth Proportional to 137,112.58, 205,643.65 and 62,214.71

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Solution

The fourth proportional to 137,112.58, 205,643.65 and 62,214.71 is: 93,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,112.58 : 205,643.65 = 62,214.71 : x
  2. Step 2: Convert to fraction form
    137,112.58/205,643.65 = 62,214.71/x
  3. Step 3: Cross multiply
    137,112.58x = 205,643.65 × 62,214.71
  4. Step 4: Simplify right side
    137,112.58x = 12,794,060,048.09
  5. Step 5: Solve for x
    x = 12,794,060,048.09/137,112.58
  6. Step 6: Final answer
    x = 93,310.62

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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.