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Finding the Fourth Proportional to 245,953.83, 368,969.58 and 86,074.41

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Solution

The fourth proportional to 245,953.83, 368,969.58 and 86,074.41 is: 129,125.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,953.83 : 368,969.58 = 86,074.41 : x
  2. Step 2: Convert to fraction form
    245,953.83/368,969.58 = 86,074.41/x
  3. Step 3: Cross multiply
    245,953.83x = 368,969.58 × 86,074.41
  4. Step 4: Simplify right side
    245,953.83x = 31,758,838,906.45
  5. Step 5: Solve for x
    x = 31,758,838,906.45/245,953.83
  6. Step 6: Final answer
    x = 129,125.21

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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.