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Finding the Fourth Proportional to 123,852.47, 170,926.94 and 70,147.04

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Solution

The fourth proportional to 123,852.47, 170,926.94 and 70,147.04 is: 96,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,852.47 : 170,926.94 = 70,147.04 : x
  2. Step 2: Convert to fraction form
    123,852.47/170,926.94 = 70,147.04/x
  3. Step 3: Cross multiply
    123,852.47x = 170,926.94 × 70,147.04
  4. Step 4: Simplify right side
    123,852.47x = 11,990,018,217.99
  5. Step 5: Solve for x
    x = 11,990,018,217.99/123,852.47
  6. Step 6: Final answer
    x = 96,808.88

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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.