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Finding the Fourth Proportional to 123,833.36, 170,933.64 and 73,532

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Solution

The fourth proportional to 123,833.36, 170,933.64 and 73,532 is: 101,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,833.36 : 170,933.64 = 73,532 : x
  2. Step 2: Convert to fraction form
    123,833.36/170,933.64 = 73,532/x
  3. Step 3: Cross multiply
    123,833.36x = 170,933.64 × 73,532
  4. Step 4: Simplify right side
    123,833.36x = 12,569,092,416.48
  5. Step 5: Solve for x
    x = 12,569,092,416.48/123,833.36
  6. Step 6: Final answer
    x = 101,500.05

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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.