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Finding the Fourth Proportional to 92,616.12, 127,815.21 and 52,331.58

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Solution

The fourth proportional to 92,616.12, 127,815.21 and 52,331.58 is: 72,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,616.12 : 127,815.21 = 52,331.58 : x
  2. Step 2: Convert to fraction form
    92,616.12/127,815.21 = 52,331.58/x
  3. Step 3: Cross multiply
    92,616.12x = 127,815.21 × 52,331.58
  4. Step 4: Simplify right side
    92,616.12x = 6,688,771,887.33
  5. Step 5: Solve for x
    x = 6,688,771,887.33/92,616.12
  6. Step 6: Final answer
    x = 72,220.39

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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.