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Finding the Fourth Proportional to 165,483.66, 248,225.48 and 115,661.06

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Solution

The fourth proportional to 165,483.66, 248,225.48 and 115,661.06 is: 173,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,483.66 : 248,225.48 = 115,661.06 : x
  2. Step 2: Convert to fraction form
    165,483.66/248,225.48 = 115,661.06/x
  3. Step 3: Cross multiply
    165,483.66x = 248,225.48 × 115,661.06
  4. Step 4: Simplify right side
    165,483.66x = 28,710,022,135.81
  5. Step 5: Solve for x
    x = 28,710,022,135.81/165,483.66
  6. Step 6: Final answer
    x = 173,491.58

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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.