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Finding the Fourth Proportional to 93,092.10, 139,638.15 and 57,662.70

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Solution

The fourth proportional to 93,092.10, 139,638.15 and 57,662.70 is: 86,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,092.10 : 139,638.15 = 57,662.70 : x
  2. Step 2: Convert to fraction form
    93,092.10/139,638.15 = 57,662.70/x
  3. Step 3: Cross multiply
    93,092.10x = 139,638.15 × 57,662.70
  4. Step 4: Simplify right side
    93,092.10x = 8,051,912,752.01
  5. Step 5: Solve for x
    x = 8,051,912,752.01/93,092.10
  6. Step 6: Final answer
    x = 86,494.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.