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Finding the Fourth Proportional to 98,585.07, 136,047.30 and 53,873.07

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Solution

The fourth proportional to 98,585.07, 136,047.30 and 53,873.07 is: 74,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,585.07 : 136,047.30 = 53,873.07 : x
  2. Step 2: Convert to fraction form
    98,585.07/136,047.30 = 53,873.07/x
  3. Step 3: Cross multiply
    98,585.07x = 136,047.30 × 53,873.07
  4. Step 4: Simplify right side
    98,585.07x = 7,329,285,716.21
  5. Step 5: Solve for x
    x = 7,329,285,716.21/98,585.07
  6. Step 6: Final answer
    x = 74,344.78

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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.