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Finding the Fourth Proportional to 124,440.93, 186,689.05 and 35,687.61

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Solution

The fourth proportional to 124,440.93, 186,689.05 and 35,687.61 is: 53,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,440.93 : 186,689.05 = 35,687.61 : x
  2. Step 2: Convert to fraction form
    124,440.93/186,689.05 = 35,687.61/x
  3. Step 3: Cross multiply
    124,440.93x = 186,689.05 × 35,687.61
  4. Step 4: Simplify right side
    124,440.93x = 6,662,485,918.45
  5. Step 5: Solve for x
    x = 6,662,485,918.45/124,440.93
  6. Step 6: Final answer
    x = 53,539.35

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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.