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Finding the Fourth Proportional to 118,098.63, 162,924.67 and 75,055.06

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Solution

The fourth proportional to 118,098.63, 162,924.67 and 75,055.06 is: 103,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098.63 : 162,924.67 = 75,055.06 : x
  2. Step 2: Convert to fraction form
    118,098.63/162,924.67 = 75,055.06/x
  3. Step 3: Cross multiply
    118,098.63x = 162,924.67 × 75,055.06
  4. Step 4: Simplify right side
    118,098.63x = 12,228,320,067.71
  5. Step 5: Solve for x
    x = 12,228,320,067.71/118,098.63
  6. Step 6: Final answer
    x = 103,543.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.