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Finding the Fourth Proportional to 83,365.62, 115,028.73 and 49,365.06

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Solution

The fourth proportional to 83,365.62, 115,028.73 and 49,365.06 is: 68,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,365.62 : 115,028.73 = 49,365.06 : x
  2. Step 2: Convert to fraction form
    83,365.62/115,028.73 = 49,365.06/x
  3. Step 3: Cross multiply
    83,365.62x = 115,028.73 × 49,365.06
  4. Step 4: Simplify right side
    83,365.62x = 5,678,400,158.17
  5. Step 5: Solve for x
    x = 5,678,400,158.17/83,365.62
  6. Step 6: Final answer
    x = 68,114.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.