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Finding the Fourth Proportional to 144,161.16, 198,929.16 and 93,175.44

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Solution

The fourth proportional to 144,161.16, 198,929.16 and 93,175.44 is: 128,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,161.16 : 198,929.16 = 93,175.44 : x
  2. Step 2: Convert to fraction form
    144,161.16/198,929.16 = 93,175.44/x
  3. Step 3: Cross multiply
    144,161.16x = 198,929.16 × 93,175.44
  4. Step 4: Simplify right side
    144,161.16x = 18,535,312,011.83
  5. Step 5: Solve for x
    x = 18,535,312,011.83/144,161.16
  6. Step 6: Final answer
    x = 128,573.55

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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.