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Finding the Fourth Proportional to 115,551.20, 173,384.40 and 65,669.60

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Solution

The fourth proportional to 115,551.20, 173,384.40 and 65,669.60 is: 98,537.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,551.20 : 173,384.40 = 65,669.60 : x
  2. Step 2: Convert to fraction form
    115,551.20/173,384.40 = 65,669.60/x
  3. Step 3: Cross multiply
    115,551.20x = 173,384.40 × 65,669.60
  4. Step 4: Simplify right side
    115,551.20x = 11,386,084,194.24
  5. Step 5: Solve for x
    x = 11,386,084,194.24/115,551.20
  6. Step 6: Final answer
    x = 98,537.14

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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.