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Finding the Fourth Proportional to 117,967.60, 165,621.20 and 117,967.60

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Solution

The fourth proportional to 117,967.60, 165,621.20 and 117,967.60 is: 165,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,967.60 : 165,621.20 = 117,967.60 : x
  2. Step 2: Convert to fraction form
    117,967.60/165,621.20 = 117,967.60/x
  3. Step 3: Cross multiply
    117,967.60x = 165,621.20 × 117,967.60
  4. Step 4: Simplify right side
    117,967.60x = 19,537,935,473.12
  5. Step 5: Solve for x
    x = 19,537,935,473.12/117,967.60
  6. Step 6: Final answer
    x = 165,621.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.