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Finding the Fourth Proportional to 104,727.71, 155,907.13 and 104,105.02

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Solution

The fourth proportional to 104,727.71, 155,907.13 and 104,105.02 is: 154,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,727.71 : 155,907.13 = 104,105.02 : x
  2. Step 2: Convert to fraction form
    104,727.71/155,907.13 = 104,105.02/x
  3. Step 3: Cross multiply
    104,727.71x = 155,907.13 × 104,105.02
  4. Step 4: Simplify right side
    104,727.71x = 16,230,714,627.16
  5. Step 5: Solve for x
    x = 16,230,714,627.16/104,727.71
  6. Step 6: Final answer
    x = 154,980.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.