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Finding the Fourth Proportional to 123,846.44, 170,902.54 and 70,130.31

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Solution

The fourth proportional to 123,846.44, 170,902.54 and 70,130.31 is: 96,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,846.44 : 170,902.54 = 70,130.31 : x
  2. Step 2: Convert to fraction form
    123,846.44/170,902.54 = 70,130.31/x
  3. Step 3: Cross multiply
    123,846.44x = 170,902.54 × 70,130.31
  4. Step 4: Simplify right side
    123,846.44x = 11,985,447,556.77
  5. Step 5: Solve for x
    x = 11,985,447,556.77/123,846.44
  6. Step 6: Final answer
    x = 96,776.69

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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.