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Finding the Fourth Proportional to 123,852.88, 170,928.12 and 70,150.96

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Solution

The fourth proportional to 123,852.88, 170,928.12 and 70,150.96 is: 96,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,852.88 : 170,928.12 = 70,150.96 : x
  2. Step 2: Convert to fraction form
    123,852.88/170,928.12 = 70,150.96/x
  3. Step 3: Cross multiply
    123,852.88x = 170,928.12 × 70,150.96
  4. Step 4: Simplify right side
    123,852.88x = 11,990,771,709.00
  5. Step 5: Solve for x
    x = 11,990,771,709.00/123,852.88
  6. Step 6: Final answer
    x = 96,814.64

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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.