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Finding the Fourth Proportional to 106,930.73, 147,582.71 and 61,600.60

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Solution

The fourth proportional to 106,930.73, 147,582.71 and 61,600.60 is: 85,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,930.73 : 147,582.71 = 61,600.60 : x
  2. Step 2: Convert to fraction form
    106,930.73/147,582.71 = 61,600.60/x
  3. Step 3: Cross multiply
    106,930.73x = 147,582.71 × 61,600.60
  4. Step 4: Simplify right side
    106,930.73x = 9,091,183,593.10
  5. Step 5: Solve for x
    x = 9,091,183,593.10/106,930.73
  6. Step 6: Final answer
    x = 85,019.37

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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.