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Finding the Fourth Proportional to 236,708.56, 355,218.06 and 86,950.12

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Solution

The fourth proportional to 236,708.56, 355,218.06 and 86,950.12 is: 130,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,708.56 : 355,218.06 = 86,950.12 : x
  2. Step 2: Convert to fraction form
    236,708.56/355,218.06 = 86,950.12/x
  3. Step 3: Cross multiply
    236,708.56x = 355,218.06 × 86,950.12
  4. Step 4: Simplify right side
    236,708.56x = 30,886,252,943.17
  5. Step 5: Solve for x
    x = 30,886,252,943.17/236,708.56
  6. Step 6: Final answer
    x = 130,482.20

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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.