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Finding the Fourth Proportional to 168,615.12, 232,681.92 and 92,136.84

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Solution

The fourth proportional to 168,615.12, 232,681.92 and 92,136.84 is: 127,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,615.12 : 232,681.92 = 92,136.84 : x
  2. Step 2: Convert to fraction form
    168,615.12/232,681.92 = 92,136.84/x
  3. Step 3: Cross multiply
    168,615.12x = 232,681.92 × 92,136.84
  4. Step 4: Simplify right side
    168,615.12x = 21,438,575,961.38
  5. Step 5: Solve for x
    x = 21,438,575,961.38/168,615.12
  6. Step 6: Final answer
    x = 127,145.04

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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.