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Finding the Fourth Proportional to 124,655.81, 186,806.73 and 96,084.78

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Solution

The fourth proportional to 124,655.81, 186,806.73 and 96,084.78 is: 143,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,655.81 : 186,806.73 = 96,084.78 : x
  2. Step 2: Convert to fraction form
    124,655.81/186,806.73 = 96,084.78/x
  3. Step 3: Cross multiply
    124,655.81x = 186,806.73 × 96,084.78
  4. Step 4: Simplify right side
    124,655.81x = 17,949,283,554.57
  5. Step 5: Solve for x
    x = 17,949,283,554.57/124,655.81
  6. Step 6: Final answer
    x = 143,990.75

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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.