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Finding the Fourth Proportional to 118,555.25, 177,832.53 and 55,354.19

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Solution

The fourth proportional to 118,555.25, 177,832.53 and 55,354.19 is: 83,031.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,555.25 : 177,832.53 = 55,354.19 : x
  2. Step 2: Convert to fraction form
    118,555.25/177,832.53 = 55,354.19/x
  3. Step 3: Cross multiply
    118,555.25x = 177,832.53 × 55,354.19
  4. Step 4: Simplify right side
    118,555.25x = 9,843,774,764.64
  5. Step 5: Solve for x
    x = 9,843,774,764.64/118,555.25
  6. Step 6: Final answer
    x = 83,031.12

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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.