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Finding the Fourth Proportional to 207,511.60, 310,768.48 and 118,495.36

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Solution

The fourth proportional to 207,511.60, 310,768.48 and 118,495.36 is: 177,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,511.60 : 310,768.48 = 118,495.36 : x
  2. Step 2: Convert to fraction form
    207,511.60/310,768.48 = 118,495.36/x
  3. Step 3: Cross multiply
    207,511.60x = 310,768.48 × 118,495.36
  4. Step 4: Simplify right side
    207,511.60x = 36,824,622,914.25
  5. Step 5: Solve for x
    x = 36,824,622,914.25/207,511.60
  6. Step 6: Final answer
    x = 177,458.14

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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.