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Finding the Fourth Proportional to 73,028.50, 108,929.17 and 66,301.42

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Solution

The fourth proportional to 73,028.50, 108,929.17 and 66,301.42 is: 98,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,028.50 : 108,929.17 = 66,301.42 : x
  2. Step 2: Convert to fraction form
    73,028.50/108,929.17 = 66,301.42/x
  3. Step 3: Cross multiply
    73,028.50x = 108,929.17 × 66,301.42
  4. Step 4: Simplify right side
    73,028.50x = 7,222,158,650.42
  5. Step 5: Solve for x
    x = 7,222,158,650.42/73,028.50
  6. Step 6: Final answer
    x = 98,895.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.