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Finding the Fourth Proportional to 150,551.76, 207,746.46 and 86,910.06

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Solution

The fourth proportional to 150,551.76, 207,746.46 and 86,910.06 is: 119,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,551.76 : 207,746.46 = 86,910.06 : x
  2. Step 2: Convert to fraction form
    150,551.76/207,746.46 = 86,910.06/x
  3. Step 3: Cross multiply
    150,551.76x = 207,746.46 × 86,910.06
  4. Step 4: Simplify right side
    150,551.76x = 18,055,257,303.39
  5. Step 5: Solve for x
    x = 18,055,257,303.39/150,551.76
  6. Step 6: Final answer
    x = 119,927.24

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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.