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Finding the Fourth Proportional to 137,716.60, 206,574.90 and 49,070.20

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Solution

The fourth proportional to 137,716.60, 206,574.90 and 49,070.20 is: 73,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,716.60 : 206,574.90 = 49,070.20 : x
  2. Step 2: Convert to fraction form
    137,716.60/206,574.90 = 49,070.20/x
  3. Step 3: Cross multiply
    137,716.60x = 206,574.90 × 49,070.20
  4. Step 4: Simplify right side
    137,716.60x = 10,136,671,657.98
  5. Step 5: Solve for x
    x = 10,136,671,657.98/137,716.60
  6. Step 6: Final answer
    x = 73,605.30

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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.