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Finding the Fourth Proportional to 117,009.80, 175,514.70 and 109,628.68

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Solution

The fourth proportional to 117,009.80, 175,514.70 and 109,628.68 is: 164,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,009.80 : 175,514.70 = 109,628.68 : x
  2. Step 2: Convert to fraction form
    117,009.80/175,514.70 = 109,628.68/x
  3. Step 3: Cross multiply
    117,009.80x = 175,514.70 × 109,628.68
  4. Step 4: Simplify right side
    117,009.80x = 19,241,444,881.60
  5. Step 5: Solve for x
    x = 19,241,444,881.60/117,009.80
  6. Step 6: Final answer
    x = 164,443.02

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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.