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Finding the Fourth Proportional to 123,827.64, 170,881.02 and 67,235.64

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Solution

The fourth proportional to 123,827.64, 170,881.02 and 67,235.64 is: 92,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,827.64 : 170,881.02 = 67,235.64 : x
  2. Step 2: Convert to fraction form
    123,827.64/170,881.02 = 67,235.64/x
  3. Step 3: Cross multiply
    123,827.64x = 170,881.02 × 67,235.64
  4. Step 4: Simplify right side
    123,827.64x = 11,489,294,743.55
  5. Step 5: Solve for x
    x = 11,489,294,743.55/123,827.64
  6. Step 6: Final answer
    x = 92,784.57

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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.