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Finding the Fourth Proportional to 92,006.60, 128,984.20 and 92,006.60

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Solution

The fourth proportional to 92,006.60, 128,984.20 and 92,006.60 is: 128,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,006.60 : 128,984.20 = 92,006.60 : x
  2. Step 2: Convert to fraction form
    92,006.60/128,984.20 = 92,006.60/x
  3. Step 3: Cross multiply
    92,006.60x = 128,984.20 × 92,006.60
  4. Step 4: Simplify right side
    92,006.60x = 11,867,397,695.72
  5. Step 5: Solve for x
    x = 11,867,397,695.72/92,006.60
  6. Step 6: Final answer
    x = 128,984.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.