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Finding the Fourth Proportional to 107,495.53, 148,340.55 and 61,553.68

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Solution

The fourth proportional to 107,495.53, 148,340.55 and 61,553.68 is: 84,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,495.53 : 148,340.55 = 61,553.68 : x
  2. Step 2: Convert to fraction form
    107,495.53/148,340.55 = 61,553.68/x
  3. Step 3: Cross multiply
    107,495.53x = 148,340.55 × 61,553.68
  4. Step 4: Simplify right side
    107,495.53x = 9,130,906,745.72
  5. Step 5: Solve for x
    x = 9,130,906,745.72/107,495.53
  6. Step 6: Final answer
    x = 84,942.20

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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.