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Finding the Fourth Proportional to 155,321.71, 232,834.92 and 99,003.73

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Solution

The fourth proportional to 155,321.71, 232,834.92 and 99,003.73 is: 148,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,321.71 : 232,834.92 = 99,003.73 : x
  2. Step 2: Convert to fraction form
    155,321.71/232,834.92 = 99,003.73/x
  3. Step 3: Cross multiply
    155,321.71x = 232,834.92 × 99,003.73
  4. Step 4: Simplify right side
    155,321.71x = 23,051,525,554.25
  5. Step 5: Solve for x
    x = 23,051,525,554.25/155,321.71
  6. Step 6: Final answer
    x = 148,411.48

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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.