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Finding the Fourth Proportional to 123,850.76, 170,913.30 and 67,261.64

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Solution

The fourth proportional to 123,850.76, 170,913.30 and 67,261.64 is: 92,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,850.76 : 170,913.30 = 67,261.64 : x
  2. Step 2: Convert to fraction form
    123,850.76/170,913.30 = 67,261.64/x
  3. Step 3: Cross multiply
    123,850.76x = 170,913.30 × 67,261.64
  4. Step 4: Simplify right side
    123,850.76x = 11,495,908,855.81
  5. Step 5: Solve for x
    x = 11,495,908,855.81/123,850.76
  6. Step 6: Final answer
    x = 92,820.66

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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.