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Finding the Fourth Proportional to 92,648.80, 127,770.78 and 67,328.20

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Solution

The fourth proportional to 92,648.80, 127,770.78 and 67,328.20 is: 92,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,648.80 : 127,770.78 = 67,328.20 : x
  2. Step 2: Convert to fraction form
    92,648.80/127,770.78 = 67,328.20/x
  3. Step 3: Cross multiply
    92,648.80x = 127,770.78 × 67,328.20
  4. Step 4: Simplify right side
    92,648.80x = 8,602,576,630.00
  5. Step 5: Solve for x
    x = 8,602,576,630.00/92,648.80
  6. Step 6: Final answer
    x = 92,851.46

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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.