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Finding the Fourth Proportional to 107,078.60, 160,553.90 and 65,555.40

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Solution

The fourth proportional to 107,078.60, 160,553.90 and 65,555.40 is: 98,293.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,078.60 : 160,553.90 = 65,555.40 : x
  2. Step 2: Convert to fraction form
    107,078.60/160,553.90 = 65,555.40/x
  3. Step 3: Cross multiply
    107,078.60x = 160,553.90 × 65,555.40
  4. Step 4: Simplify right side
    107,078.60x = 10,525,175,136.06
  5. Step 5: Solve for x
    x = 10,525,175,136.06/107,078.60
  6. Step 6: Final answer
    x = 98,293.92

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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.