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Finding the Fourth Proportional to 107,679.58, 148,557.97 and 107,513.51

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Solution

The fourth proportional to 107,679.58, 148,557.97 and 107,513.51 is: 148,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,679.58 : 148,557.97 = 107,513.51 : x
  2. Step 2: Convert to fraction form
    107,679.58/148,557.97 = 107,513.51/x
  3. Step 3: Cross multiply
    107,679.58x = 148,557.97 × 107,513.51
  4. Step 4: Simplify right side
    107,679.58x = 15,971,987,997.83
  5. Step 5: Solve for x
    x = 15,971,987,997.83/107,679.58
  6. Step 6: Final answer
    x = 148,328.84

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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.